Super fact – Page 14

The Universe has a Redshift and its Increasing

Super fact 79 : Distant galaxies appear redder (redshifted) because of the universe’s expansion. The farther away the galaxy, the redder it is. This cosmological redshift is also increasing because the Universe’s expansion is accelerating. Our Universe is getting more and more red every day.

Esther’s writing prompt: January 14 : Red

Click here or here to join in.

Many people are aware that the Universe is expanding but may not know that this results in a measurable redshift. The faster a galaxy is moving away from us the redder it appears. This is called the cosmological redshift. Measuring these redshifts was how we discovered that our Universe is expanding.

Cosmological redshift vector illustration. Stretched and original space wavelength with earth and distant galaxy. Doppler effect astronomical phenomenon distance example. | The Universe has a Redshift and its Increasing — As the Universe expands and galaxies are moving away from each other the light will be stretched. Stretched light with longer wavelengths are more red. The phenomenon is called redshift. Shutterstock Asset id: 1180828402 by VectorMine.

At the end of the 1990’s it was also discovered that the Universe’s expansion was accelerating. This discovery came from measuring the redshifts (and apparent dimness) of distant Type Ia supernovae. I should add that measuring the increase in the cosmological redshift directly is difficult. However, it is expected to be possible when the Extremely Large Telescope (ELT) starts gathering data in 2027. I can add that there are also other types of evidence showing that the Universe’s expansion is accelerating.

Another surprising aspect is, if the Big Bang was like an explosion, gravity would pull back the galaxies making the expansion slow down and perhaps eventually even reverse. However, the opposite is happening. A common explanation is that a repulsive force, a sort of anti-gravity, referred to as dark energy, is responsible for this acceleration.

I call this a super fact because this is an observed phenomenon, it is important knowledge for how we view the world, and it is surprising. Many people have heard bits and pieces of this but do not have the fuller picture.

The Doppler Effect

The cosmological redshift is an example of the so called doppler effect. The doppler effect is the change in the frequency or wavelength of a wave in relation to an observer if the origin of the wave and the observer are moving compared to each other. If an object is moving towards you, let say an ambulance, the frequency of its sound will be higher (wavelength shorter).

After it passes you and moves away from the frequency will be lower (wavelength longer). In other words, the sound changes when the ambulance passes you. The same is true for other kinds of waves, including waves on the water, and light. If a light is travelling towards you at a high speed, it will look bluer. If a light is travelling away from you at a high speed it will look redder. The latter is what is called a redshift, cosmological redshift in our case.

The object is indicated by a red dot, and a red arrow indicates the direction of motion. — Change of wavelength caused by motion of the source. When an object moves toward you the wavelengths get shorter and the frequency higher. When an object moves away from you the wavelengths get longer and the frequency lower. Original: Tkarcher Vector: Tatoute, CC BY-SA 3.0 <http://creativecommons.org/licenses/by-sa/3.0/>, via Wikimedia Commons

An animation illustrating how the Doppler effect causes a car engine or siren to sound higher in pitch when it is approaching than when it is receding. The red circles represent sound waves. — The Doppler effect causes a car engine or siren to sound higher in pitch when it is approaching than when it is receding. The red circles represent sound waves. Charly Whisky 18:20, 27 January 2007, CC BY-SA 3.0 <http://creativecommons.org/licenses/by-sa/3.0/>, via Wikimedia Commons

Below is a three minute video explaining the doppler effect and redshift.

I can add that the constancy of the speed of light in vacuum changes the exact size of the doppler effect. The doppler effect remains as is for the most part but the formulas for the classical doppler effect, which you would use for sound, and the relativistic doppler effect, which you would use for light in space, are different. It is just to pick the right formula.

Doppler Effect Formula on a green chalkboard. Education. Science. Formula. Vector illustration. | The Universe has a Redshift and its Increasing — The classical formula for the doppler effect. There is a medium (air) but you don’t need to consider the constancy of the speed of light in vacuum. You use it for sound and water waves. Shutterstock Asset id: 2365938267 by Sasha701.

Relativistic Doppler Effect Formula on a black chalkboard. Education. Science. Formula. Vector illustration. — The relativistic formula for the doppler effect considers the constancy of the speed of light in vacuum but there is no medium to worry about. You use this formula for the doppler effect of light in space. Shutterstock Asset id: 2416786951 by Sasha701.

Measuring redshift

A common misconception is that astronomers take pictures of distant galaxies and somehow measure the “redness” of them, but that is not the case. When you take a spectrum of a heated element (such as hydrogen or helium in stars) it creates characteristic dark lines in the spectrum — like a fingerprint. Everything on the periodic table has its own characteristic fingerprint of lines at characteristic frequencies. In addition to measuring the cosmological redshift it makes it possible to identify the elements in a star and their proportions. See the picture below.

The top shows a colorful spectrum from blue to red with absorption lines in black. The bottom portion of the picture shows the same thing expect the black absorption lines have moved a bit to the right. — Visualization of redshifted absorption lines are redshifted due to velocity away from observer. Top lines are for an object at rest and in the bottom picture the object is moving away. Maxmath12, CC0, via Wikimedia Commons. This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.

Expanding Universe Hazy IPA

Expanding Universe is a Hazy IPA, or a so called New England style IPA from First State Brewing, ABV 6.5%, IBU 25 (IBU = International Bitter Units). The fact that it is an IPA (India Pale Ale) means that it is Ale and therefore not a Lager. The fact that it is an IPA means that it is hop-forward and has an intense flavor and aroma. The fact that it is a Hazy / New England style IPA means that it is more fruity than bitter and looks cloudy, hazy, like juice. The flavor of Expanding Universe is mango, pineapple, and grapefruit. It has a low bitterness, it is fruity, juicy, and it is great if you like New England IPAs.

The picture shows a glass with yellow to light orange hazy liquid. There are green plants in the background. — Expanding Universe ABV 6.5%, IBU 25.

To see the Super Facts click here

Neutron Stars Trillions of Times Denser than the Sun

Super fact 78 : A neutron star is vastly denser than the Sun, typically hundreds of trillions of times denser. In addition, the gravity on a neutron star is a few billion times stronger than on the Sun’s surface. Therefore, a cubic meter of neutron star material weighs roughly septillion times (1,000,000,000,000,000,000,000,000 times) more than a cubic meter of Sun’s average density material placed on the sun’s surface.

A neutron star is the core of a collapsed supergiant star. It is the remnant of a supernova explosion of a massive star. The original star typically has a mass of 10 to 25 solar masses and the core remnant a mass between 1.4 to 2 times the mass of the sun but confined into a sphere with a diameter of on average 12 miles. That is quite small for so much mass and will result in a material so compressed that it is hundreds of trillions of times denser than our sun. A tablespoonful of a neutron star would have the same mass as Mount Everest.

The neutron star is so compressed that it has the density of an atomic nucleus. The extreme pressure causes the electrons and protons in normal matter to combine into neutrons. If the core remnant would be a bit more than 2.2 times the mass of the sun it would turn into a black hole. In that sense a neutron star is the last stop before a collapsing giant star becomes a black hole.

Four pictures: 1: massive star with an inner core. 2: Inner core implodes under gravity. 3: Gravity smashes electrons and protons together, forming neutrons, and releasing a shower of neutrinos. Outer layers slosh violently from standing accretion shock instability. 4: Outer layers implode and collapse onto the inner core at 25% of the speed of light. | Neutron Stars Trillions of Times Denser than the Sun — Simplified representation of the formation of neutron stars. BedrockPerson, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons

Let’s do the calculation. Let’s say the density of a neutron star is 200 trillion times that of the Sun, and the gravity is 5 billion times stronger (100 billion to 200 billion times stronger than Earth’s gravity). That results in the matter on a neutron star weighing a septillion time (1,000,000,000,000,000,000,000,000 times) more than the same volume of matter of the average density of the sun on the sun’s surface. I should say I asked ChatGPT to make this calculation using its own numbers, and it got roughly the same answer.

I can add that the average density of the sun is 1.4 grams per cubic centimeter which is less than that the average density of the earth, which is 5.5 grams per cubic centimeter. On the other hand, the gravity on the Sun’s surface is about 28 times stronger than on Earth, so if you make these comparisons with Earth instead of the sun the numbers get seven times worse, or seven septillion (7,000,000,000,000,000,000,000,000). I can add that even though neutron stars are extreme they are not rare. NASA estimates that there are a billion of them in our Milky Way Galaxy.

I consider this a super fact because it is true, and it is somewhat important to be aware of the extremes of the Universe. It tells us about who we are and our place in the Universe. A septillion times more weight, for the same volume and densities hundreds of trillions of times larger than the Sun or the Earth are surprising and shocking numbers.

A bright blue spherical neutron star on the background of the night sky. — Neutron star on a black background. Superdense remnant of a star in space. A small star with a huge mass. ShutterstockAsset id: 2369752833 by Nazarii_Neshcherenskyi

To watch a seven minute video about Neutron stars, see below.

Different Types of Neutron Stars

Neutron stars are extreme stars. They are small super dense stars with extreme gravitational fields. They are in a sense like a gigantic atomic nucleus. Perhaps it is not surprising that they are extreme in other ways as well. There are pulsars, neutron stars which emit twin beams of radiation from their magnetic poles. Those poles may not be precisely aligned with the neutron star’s rotation axis, so as the neutron star spins, the beams sweep across the sky, like beams from a lighthouse. To observers on Earth, this can make it look as though the pulsar’s light is pulsing on and off.

There are magnetars, neutron stars with extremely powerful magnetic fields trillions and quadrillion times stronger than Earth’s magnetic field at the surface. If one were to get close to Earth, at the distance about the same as the moon, you would see a small new star in the sky, as cars and other metallic objects lift from the ground and the magnetic strips of credit cards and computer hard drives are erased.

There are additional classes of neutron stars such as black widow pulsars, blasting a nearby star with radiation thus killing the star, soft gamma repeaters, magnetars emitting short burst of X-rays and gamma rays in irregular repeating patterns. There are binary neutron stars (two neutron stars orbiting each other) and they sometimes merge, collide, emitting detectable gravity waves. Click on the link to see a video visualization.

A bluish neutron star surrounded by impressive looking fields. | Neutron Stars Trillions of Times Denser than the Sun — Magnetar – neutron star in deep space. For use with projects on science, research, and education. 3D illustration. Shutterstock Asset id: 1138434620 by Jurik Peter

At top there is some text stating “A neutron star is a dense core left behind after a massive star goes supernova and explodes. Though only about 10 to 20 miles (15 to 30 kilometers) wide, they can have three times the mass of our Sun, making them some of the densest objects in the universe, second only to black holes. A teaspoon of neutron star material would weigh 4 billion tons on Earth. There are several types of neutron stars.” : Below the text at the top there is a picture of a magnetar, a pulsar and a magnetar plus pulsar. The text for each picture says: Magnetar - A magnetar is a neutron star with a particularly strong magnetic field, about 1,000 times stronger than a normal neutron star. That's about a trillion times stronger than a normal neutron star. That's about a trillion times stronger than Earth's magnetic field and about 100 million times stronger than the most powerful magnets ever made by humans. Scientists have only discovered about 30 magnetars so far. Pulsar - Most of the roughly 3,000 known neutron stars are pulsars, which emit twin beams of radiation from their magnetic poles. Those poles may not be precisely aligned with the neutron star's rotation axis, so as the neutron star spins, the beams sweep across the sky, like beams from a lighthouse. To observers on Earth, this can make it look as though the pulsar's light is pulsing on and off. Magnetar + Pulsar – there are about six known neutron stars that are both pulsars and magnetars. — Courtesy NASA/JPL-Caltech, Attribution, via Wikimedia Commons

Other extreme stellar objects

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Ten Selected 2025 Super Facts

I started this blog, superfactful, in August of 2024. The goal of my blog is to create a list of facts that are important, not trivia, and that are known to be true yet surprising, shocking or disputed by large segments of the public. I determine what is true by evaluating the evidence I find in reliable reputable sources and if a longstanding scientific consensus is available that certainly helps. In some cases, I have expertise in the subject myself, which also helps. Whether a fact is important and surprising or disputed is a judgment call. In some cases, there are polls to help me determine how surprising or disputed the fact is. I am trying to avoid trivia and click bait, and I am only focusing on what is true, important and mindboggling.

It is a project I hope to learn a lot from, and I hope others will also learn something from reading it. We are all drowning in misinformation, false beliefs and unsubstantiated assumptions. We often know and understand less than we think. I have been bamboozled in the past and I am pretty sure you have too. If this blog can spread a little bit of light, I am happy.

In 2024 I posted 25 super facts and in 2025 I posted 53. I am hoping to one day to have collected 200 super facts. I have also made 64 other kinds of posts on this blog such as book reviews for educational books as well as other fact related posts. Below are ten selected super facts from 2025. To read the full post click the links.

That Earth is round was well known long before Columbus

Super fact 28: That Earth is round, or spherical (or closely spherical) had been known for at least a couple of thousand years by the time Columbus set sail. Columbus did not set sail to prove that earth was round, and he knew it was round.

I’ve realized that this comes as a surprise to some. To read the post click here.

The earth globe showing the side with the Pacific Ocean. The Pacific Ocean covers most of this side. | Ten Selected 2025 Super Facts — Columbus thought earth was smaller. He did not know about the Pacific Ocean. Earth Pacific Ocean view Stock Illustration ID: 1617553012 by Matis75

EV Cars Indeed Emit Less Carbon Pollution

Super fact 29: EV Cars emit less pollution than Internal Combustion Engine, even considering manufacturing, disposal and EV Cars being charged by dirty grids.

There is a lot of misinformation about EVs including that EVs are not better for the environment. To read the post click here.

The histogram graph show that if you consider construction of facilities, manufacturing of vehicle and battery, production of fuel, vehicle operation as well as disposal the total average greenhouse gas emissions from EV cars is 52% less. — Lifecycle greenhouse gas emissions comparison of average gasoline car and 300 mile range EV. Feedstock and fuel include the generation of electricity for EVs.

Scientists Agree that Global Warming is happening and that we are the Cause

Super fact 34: Climate Scientists agree that Global Warming or if you call it Climate Change is happening, and that it is caused by us primarily because of our burning of fossil fuels. There is a long-standing scientific consensus on these two facts because the evidence is conclusive. Typically, studies show an agreement of at least 97% or 98% among climate scientists.

Polls show that most American are unaware of the consensus among climate scientists. To read the post click here.

There is almost total agreement among climate scientists that global warming, or climate change, is happening and is caused by us. To understand why, you need to know a little bit about the impressive evidence, which for all practical purposes is conclusive. Take a look at this post “Global Warming is Happening and is Caused by us”

The green graph is going up slightly starting from 46% in 2009 and ending in 58% in 2023. The black graph starts at 33% in 2009 and ends in 22% in 2023. The yellow graph starts at 2% in 2009 and ends in 2% in 2023. — The green graph corresponds to “most scientists think global warming is happening (%).” The black graph corresponds to “there is a lot of disagreement among scientists (%)”. The yellow graph corresponds to “Most scientists think global warming is NOT happening (%)”. Graph taken from the Yale Program on Climate Change Communication.

Time Dilation Goes Both Ways

Super fact 38 : If two observers are moving compared to each other both will observe the other’s time as being slower. In other words, both observers will observe the other’s clocks as ticking slower. Time slowing down is referred to as Time Dilation.

Clocks slow down as you travel at high speeds. However, the person travelling think they are standing still. It is the other person who is travelling. This is confusing. To understand it click here.

The picture shows two people Alan and Amy. Alan is on the ground. Amy is flying by Alan in a rocket speeding left. Both Alan and Amy are pointing lasers to the left. | Ten Selected 2025 Super Facts — In this picture Amy is traveling past Alan in a rocket. Both have a laser. Both measure the speed of both laser beams to be c = 299,792,458 meters per second. The speed of light is a universal constant.

Emissions of ozone-depleting gases have fallen by 99 Percent

Super fact 41 : Largely thanks to the Montreal Protocol in 1987 the emissions of ozone-depleting gases have fallen by more than 99%, 99.7% to be exact, according to Our World in Data. This has resulted in halting the expansion of the ozone holes and the reduction in emissions of ozone-depleting gases is saving millions of lives every year.

A gigantic victory for the environment that few are aware of. To read the post click here.

Gases visualized in the diagram are CFCs, Halons, HCFCs, Carbon Tetrachloride, Methyl Bromide, Methyl Chloroform. The diagram shows a peak around the end of 1980’s. — The phase out of six ozone depleting gases. Data source UN Environment Program (2023).

Sulfur dioxide pollution has fallen by 95 percent in the US

Super fact 44 : Sulfur dioxide pollution in the US has fallen by approximately 95% since the 1970s. This significant reduction is primarily due to regulations like the Clean Air Act. Global sulfur dioxide pollution has also fallen but not as much.

Another big victory for the environment that we seldom hear of. To read the post click here.

The graph shows a steep increase towards the end of the 19th century with a peak in 1973, followed by a steep decline. — US sulfur dioxide pollution since 1800. Data Source: Hoesly et al (2024) – Community Emissions Data System (CEDS). This graph is taken this page in Our World In Data. US Emissions peaked in 1973.

I should mention that by clicking this link you can visit the graph above Our World in Data and select different countries and regions and play around with the settings.

We Exploded Thousands of Nuclear Bombs

Super fact 48 : Since 1945 we have set off more than 2,000 Nuclear Bombs corresponding to a yield of an estimated 42,000 times that of the Hiroshima Bomb.

That we have exploded these many nuclear bombs was a surprise to me and perhaps to you too. To read the post click here.

Russian Tsar Bomba mushroom cloud rising high above the clouds. High quality photo realist ( 3d make ). | Ten Selected 2025 Super Facts — This is an illustration of the Tsar Bomba explosion by by mbafai Shutterstock Asset id: 2208486661. To see a photo of the actual Tsar Bomba explosion click here (it is copyrighted).

The Euler Number Math Magic

Super fact 53 : The Euler number denoted e, is an irrational number, which like the number pi is extremely important in mathematics. In addition, the relationship between the Euler number and pi; seemingly unrelated numbers, is quite amazing, especially if you throw the imaginary number: i = square root of -1 into the mix. Euler’s formula e^ix = cos(x) + isin(x), where x is degrees expressed in radians, is mind blowing to say the least. Radians means that 180 degrees is replaced by pi, and 90 degrees is replaced by pi/2, etc. A simpler special case, but equally amazing is Euler’s identity e^ix = -1, or e^ix + 1 =0. This is amazing math assuming you understand it.

One of the most amazing math facts explained. To read the post click here.

The formula e^ix + 1 =0 shown on a blue and black background. | Ten Selected 2025 Super Facts — Euler’s formula in cyber space with grid 3d illustration, Asset id: 1636161301 by Giggle2000

The Bermuda Triangle the Big Non-Mystery

Super fact 56 : The Bermuda Triangle mystery is a myth. There is not a higher risk of disappearances in the Bermuda Triangle. To be specific, disappearances do not occur in the so-called Bermuda Triangle, or Devils Triangle, with any higher frequency than in other comparable regions of the ocean. The “mystery” of the Bermuda Triangle is largely a manufactured one, perpetuated by sensationalized accounts that often misrepresent the facts and downplay the role of natural hazards like storms.

A surprise to the people who are convinced that there really is a mystery. To read the post click here.

The Bermuda triangle has one corner in Bermuda, one in Puerto Rico and one around Miami, Florida. — The Bermuda Triangle: It is approximately defined as a triangle Florida, Bermuda, and Puerto Rico. There is no exact definition. Alphaiosderivative work: -Majestic-, Public domain, via Wikimedia Commons.

Evolution is a Fact

Super fact 63 : Evolution is both a fact and a scientific theory. It is a fact that life has changed over time. This is supported by overwhelming evidence, while the theory of evolution provides a comprehensive scientific explanation for these changes, using processes like natural selection.

Yes, there are scientific facts, and that evolution is happening is an observed scientific fact. To read the post click here.

A photo of a trilobite fossil. | Ten Selected 2025 Super Facts — The fossil record is a lot more solid and much less problematic than the creationist books I have read claimed. Shutter Stock Photo ID: 1323000239 by Alizada Studios

Happy New Year to You All

To see the other Super Facts click here

US National Debt is Ballooning

Super fact 76 : The current US national debt is a record 38.35 trillion dollars and growing despite it being peacetime and no recession. The expected GDP for 2025 is 30.6 trillion, which corresponds to a debt to GDP Ratio of 125 percent.

The federal government needs to borrow money to pay its bills when its ongoing spending activities and investments cannot be funded by federal revenues alone. That the national debt is growing in terms of dollars may not be shocking. There is inflation, the country is growing, and as the economy grows its ability to pay the debt increases. Therefore, the debt to GDP Ratio is a better measurement of the size of the problem as this metric relates to our ability to pay the debt back. When the debt to GDP Ratio is growing there is a real problem.

Wars and recessions tend to add to the federal debt. While debt spikes during crises, it historically receded after. The second World War is an example (see below). However, since 1980 US debt has grown without seeming to come back down. Not only does the current debt to GDP Ratio exceed the one after the Second World War, the current trends show persistent deficits even in peacetime, unlike post-WWII, making the long-term outlook scary.

The graph shows two graphs, the US gross public debt and the net public debt as a debt to GDP Ratio. Both graphs show a spike during and after World War II followed by a recovery. Since 1980 the debt started growing again reaching higher than ever levels. — The top panel shows debt deflated to 2010 dollars; the second panel shows debt as a percentage of GDP. The US debt and the US debt to GDP Ratio is at a record high, exceeding that following the Second World War and we aren’t slowing down. Note the gross public debt includes all U.S. government debt, including money it owes itself (Social Security trust fund), while net public debt subtracts the government’s financial assets. The graph is from this Wikipedia article. en:User:O18, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons.

Below is an overview of the Federal Debt as percent of the GDP starting with 1965 to the beginning of 2025. The graph does not include most of the more than 2 trillion increases in debt during 2025, including a 1 trillion increase that happened in just two months toward the end of the year. So at the end there is a missing uptick. The graph below comes from this website.

In the past we used to discuss the national debt and the national deficit a lot, and it was viewed as an important and urgent problem to solve. It was a matter of intergenerational justice. There are some big problems that we have largely solved, for example, the sulfur dioxide pollution that created acid rain has fallen by 95 percent in the US, and the emissions of ozone-depleting gases have fallen by 99 Percent. As a result, we have mostly stopped talking about those problems. However, as the problem with national debt has grown, we have not increased but decreased our attention to the problem. The fact that the debt is now more than 38 trillion dollars, or $112,000 per person in US, and keeps rising despite no wars or recessions happening is probably a shock to many. It is true, it is an important fact, and it is surprising and perhaps shocking and therefore it is a super fact. To read more about the national debt click here.

Debt to GDP Presidents

One might be curious as to how the debt changed during specific Presidencies. I took the graph above and inserted lines representing the starting and ending years for the most recent Presidents. For example, Joe Biden’s Presidency started January 20, 2021, and ended January 20, 2025. I might not have gotten it exactly right so don’t read too much into it.

I added lines for Jimmy Carter, Ronald Reagan, H.W. Bush, Bill Clinton, George W. Bush, Barack Obama, Joe Biden, and Donald Trump. — I added the lines representing Presidents periods.

Below is a table I found online.

President	Years in Office	Debt-to-GDP at Start	Debt-to-GDP at End	Change (Percentage Points)
Franklin D. Roosevelt	1933–1945	~20%	~112.9%	+92.9 (WWII/Depression)
Harry S. Truman	1945–1953	112.9%	~67.1%	-45.8
Dwight D. Eisenhower	1953–1961	~67.1%	~55.2%	-11.9
Lyndon B. Johnson	1963–1969	~46.9%	~38.6%	-8.3
Jimmy Carter	1977–1981	~35.8%	~32.5%	-3.3
Ronald Reagan	1981–1989	~32.5%	~53.1%	+20.6
George H.W. Bush	1989–1993	~53.1%	~66.1%	+13.0
Bill Clinton	1993–2001	~66.1%	~56.4%	-9.7
George W. Bush	2001–2009	~56.4%	~84.2%	+27.8 (Wars/Recession)
Barack Obama	2009–2017	~84.2%	~103.6%	+19.4 (Great Recession aftermath)
Donald Trump	2017–2021	~103.6%	~132.8% (peak in Q2 2020)	+29.2 (Pandemic relief/tax cuts)
Joe Biden	2021–Present	~132.8% (at start of term, Q2 2020 peak)	~124.3% (as of 2024)	Fluctuation/slight decrease due to GDP recovery/inflation

Other Types of Debt

I should add that there are other types of debt not just federal debt / national debt (gross and net). American companies and financial institutions owe money and consumers have debt. As you can see in the graph below the debt to GDP ratio increase is true for those kinds of debts as well. We are a nation in debt. To read more about the graph below click here.

The graph shows four graphs representing Government (% of GDP) in purple, non-financial business sector-Debt (% of GDP) in red, Household - Debt (% of GDP) in blue, financial business sector (% of GDP) in green. — Debt as a percentage of GDP, United States, 1945 to 2020. Data source: US Federal Reserve, US Bureau of Economic Analysis (2020), tinyco.re/2448179 | Powered by ourWorldindata.org

To see the other Super Facts click here

Magnetars Super Magnets in the Sky

Super fact 75 : Magnetars are a type of neutron star with extremely powerful magnetic fields ranging from 10,000,000,000,000 Gauss to 1,000,000,000,000,000 Gauss. In comparison, Earth’s magnetic field varied from about 0.25 to 0.65 Gauss at the surface. In other words, the magnetar magnetic fields are from 20 or 40 Trillion times to 2 or 4 Quadrillion times stronger than Earth’s magnetic field at the surface.

A bluish neutron star surrounded by impressive looking fields | rs Super Magnets in the Sky — Magnetar – neutron star in deep space. For use with projects on science, research, and education. 3D illustration. Shutterstock Asset id: 1138434620 by Jurik Peter

The magnetic fields of magnetars are trillions of times stronger than the sun’s magnetic field, which is 1 Gauss on a quiet sun surface and 2,000 to 4,000 Gauss in sunspots. The magnetic field of an MRI’s machine is also incredibly strong (2,000 Gauss to 100,000 Gauss). It is thousands to over a hundred thousand times stronger than Earth’s magnetic field. That’s why you should not have metals around an MRI machine. However, the magnetic field of a magnetar is still hundreds of millions to tens of billions of times stronger than the magnetic field of an MRI machine, and the magnetic field is not confined to a small machine but surrounds a neutron star and stretches far out into space.

If you placed a magnetar halfway to the moon from Earth (a magnetar is around 12 miles in diameter), it would erase all the credit cards on Earth (see video below). If you get close to a Magnetar (1000 kilometers) cars and other metal would float up in the air and the atoms in yourbody would stretch into rods making organic chemistry impossible and kill you. If you placed a steel beam on the surface of a magnetar the magnetic field would pulverize it and destroy the atoms.

In 2004 a magnetar named SGR 1806-20 located 50,000 light years from our solar system (700 million times farther than the planet Jupiter) had a starquake disturbing the magnetic field and sending out a gamma burst that disrupted radio communication on Earth. I consider the existence of magnetars a super fact because the existence of these super magnetic monsters is shocking and not well known amongst the public, and yet their existence has been confirmed.

The picture shows a bright magnetar surrounded by a bluish gamma ray burst and it is all set to a background of stars. — On 27 December 2004, a burst of gamma rays from SGR 1806−20 passed through the Solar System (artist’s conception shown). The burst was so powerful that it had effects on Earth’s atmosphere, at a range of about 50,000 light-years. U Harvard, Public domain, via Wikimedia Commons.

What Are Neutron Stars and Magnetars?

A neutron star is the gravitationally collapsed core of a massive supergiant star. The collapse causes it to become super compact and relatively small by volume. As the name implies the atoms are crushed, and protons and electrons merge into neutrons, making the neutron star mostly neutrons. The typical diameter of a neutron star ranges from 10 to 25 km (6 to 15 miles) depending on its mass. Neutron star material is extremely dense.

A normal-sized matchbox containing neutron-star material would have a weight of approximately 3 billion tons, the same weight as a 0.5-cubic-kilometer chunk of the Earth (a cube with edges of about 800 meters) from Earth’s surface, or a very large mountain. In addition, the gravity on a neutron star is immense, about 100 billion to 200 billion times stronger than Earth’s gravity.

Magnetars are neutron stars with extremely powerful magnetic fields. They have the universe’s most powerful magnetic fields (trillions of times stronger than Earth’s) that power intense X-ray/gamma-ray bursts as its field decays, often seen as highly variable pulsars. They were first theorized in 1992 to explain Soft Gamma Repeaters (SGRs) and Anomalous X-ray Pulsars (AXPs). As of July 2021, 24 magnetars have been confirmed. According to the video below 30 magnetars have been confirmed in the Milky Way. There might be 3,000 in our Galaxy.

Category: Super fact

The Universe has a Redshift and its Increasing

Esther’s writing prompt: January 14 : Red

The Doppler Effect

Measuring redshift

Expanding Universe Hazy IPA

Related Posts

To see the Super Facts click here

Neutron Stars Trillions of Times Denser than the Sun

Different Types of Neutron Stars

Other extreme stellar objects

To see the other Super Facts click here

Ten Selected 2025 Super Facts

That Earth is round was well known long before Columbus

EV Cars Indeed Emit Less Carbon Pollution

Scientists Agree that Global Warming is happening and that we are the Cause

Time Dilation Goes Both Ways

Emissions of ozone-depleting gases have fallen by 99 Percent

Sulfur dioxide pollution has fallen by 95 percent in the US

We Exploded Thousands of Nuclear Bombs

The Euler Number Math Magic

The Bermuda Triangle the Big Non-Mystery

Evolution is a Fact

Happy New Year to You All

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US National Debt is Ballooning

Debt to GDP Presidents

Other Types of Debt

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Magnetars Super Magnets in the Sky

What Are Neutron Stars and Magnetars?

Magnetar YouTube Video

Other extreme stellar objects

I wish all of you Happy Holidays and Happy New Year

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