50 Amazing and strange Astronomy facts

What do you think?

1-Saturn would float if you would put it in water.
2-If you would place a pinhead sized piece of the Sun on the Earth you would die from standing within 145 km (90 miles) from it.
3-Space is not a complete vacuum, there are about 3 atoms per cubic meter of space.
4-Only 5% of the universe is made up of normal matter, 25% is dark matter and 70% is dark energy.
5-Neutron stars are so dense that a teaspoon of them would be equal to the weight of the entire Earth’s population.
6-The Sun is 400 times larger than the Moon but is 400 times further away from Earth making them appear the same size.
7-The star Lucy in the constellation Centaurus is a huge cosmic diamond of 10 billion trillion trillion carats.
8-Seasons last 21 years on Uranus while each pole has 42 years of sunlight followed by 42 years of darkness.
9-Venus,on the other hand, does not have any seasons at all.
10-1 year on Mercury consists of less than 2 days on Mercury.
11-There are as many oxygen atoms in a breath as breaths of air in the atmosphere.
12-Helium is the only substance in the universe that cannot be in solid form.It can’t be cold enough.
13-The coldest place in the universe is on Earth. In Wolfgang Ketterles lab in Massachusetts. 0.000000000001 degrees Kelvin.
14-The pistol star is the most luminous star known 10 million times the brightness of the Sun.
15-Saturn’s moon Titan has liquid oceans of natural gas.
16-All the planets are the same age: 4.544 billion years.
17-Earths moon was most likely formed after an early planet named Theia crashed into Earth.
18-8000 stars are visible with naked eye from Earth. 4000 in each hemisphere, 2000 at daylight and 2000 at night.
19-90-99% of all normal matter in the universe is hydrogen.
20-Only 55% of all Americans knows that the Sun is a star.
21-Because of the speed the Sun moves at, solar eclipses can last at most 7 minutes and 58 seconds.
22-Lunar eclipses, however, can last 1 hour and 40 minutes.
23-All the coal, oil, gas, wood and fuel on Earth would only keep the Sun burning for few days.
24-A full moon is nine times brighter than a half moon.
25-When the Moon is directly above your head or if you stand at the equator, you weight slightly less.
26-A single Quasar produce the same amount of energy as 1 trillion suns.
27-Just after the Big Bang, everything in the universe was in liquid form.
28-A planet nicknamed “The Genesis Planet” has been found to be 12.7 billion years old making it the oldest planet found.
29-The shape of the universe looks a lot like a brain cell.
30-Every year, the Moon is moving away from Earth by 3.8 centimeters.
31-The Moon spins around its axis in the same time it goes one lap around the Earth which makes us always see the same side of it.
32-Upsilon Andromeda B also only face one side to its star. One side is hot as lava while the other one is cold below freezing.
33-The average galaxy contains “only” 40 billion stars.
34-While in space astronomers can get taller, but at the same time their hearts can get smaller.
35-Mars surface is cowered with iron oxide (rust).
36-Only half a billionth of the energy released by the Sun reaches Earth.
37-Rogue planets are not bound by any star, brown dwarf or another planet which makes them free-float around the galaxy.
38-Sweeps 10 is the planet with the shortest orbital period found. It orbits its star in only 10 hours.
39-85% of all stars in our galaxy are part of multiple-star systems.
40-Some brown dwarfs have liquid iron rain falling down on them.
41-The light emitting from the Sun is actually 30.000 years old.
42-Of the over 20 million meteors that are observable every day only one or two reach the surface of Earth.
43-The United States have approximately 3.500 astronomers, but over 15.000 astrologers.
44-The closest black hole to Earth is only 1.600 light-years away.
45-There are at least 10^24 stars in the universe.
46-Certain “star quakes” have been found to tear apart the surface of neutron stars.
47-Any free-moving liquid in outer space will form itself into a sphere due to surface tension.
48-The odds of being killed by falling space debris is 1 in 5 billion.
49-Neutron stars can rotate up to 500 times in 1 second.
50-The largest structure found in the universe is the Sloan Great Wall, a super cluster of galaxies 1.37 billion light-years wide.

Very interesting facts from Astronomers & Scientists.. I still could not get it about fact number 18 ? Half of the stars are visible at daylight with naked eye from Earth? Could anyone explain!

48 responses to “50 Amazing and strange Astronomy facts

  1. These are very interesting facts! My favorite planet is Uranus:


  2. Learned a few things here! Took my time leaving a comment as I’ve been trying to figure out about the stars visible in daylight to the naked eye bit πŸ˜‰ Why do I get the feeling you know the answer already?! I thought I did know…but now I’m not at all sure my thinking makes sense…even to me!! I looked into it and still haven’t got any satisfactory answers…so! It is time to put Icewolf out her misery and tell me why!!!

    Daylight starry skies πŸ™‚

    • Hi Europa πŸ™‚
      I’m glad that you’ve learned…anyway for that part (daylight) is a tricky, mysterious and easy one at the same time πŸ™‚

      What is really mysterious? Is the feeling ..about me knowing the answer!! πŸ™‚

      Ok lets get it solved! >>> The fact says >>>

      “8000 stars are visible with naked eye from Earth. 4000 in each hemisphere, 2000 at daylight and 2000 at night.”

      In a Clear way>>>

      “8000 stars are visible with naked eye from Earth(Full Stop) 4000 in each hemisphere(Comma) 2000 at daylight (and) 2000 at night(Full Stop)”

      Well, Astronomers say: “estimated number of stars visible to the naked eye from earth is about 8000, 4000 which are visible from the Northern Hemisphere and another 4000 from the Southern Hemisphere. At any one time in either hemisphere, ONLY 2000 stars are visible. The other 2000 are located in the daytime sky and are obscured by the much brighter light of the Sun”

      So this supposed to mean that if the Sun didn’t involve blocking other stars light, the 2000 stars would be visible to the naked eye during daytime.

      In Theory it is correct, but in Practical with Sun light it is not possible..I didn’t say Impossible… I hope this is very clear now πŸ™‚

      Mystery solved πŸ™‚ , except the one about the feeling πŸ™‚

      Clear mystery solved skies,

  3. Confused. Can someone explain this:
    41-The light emitting from the Sun is actually 30.000 years old.

    Does this imply that 30,000 years ago the sun wasn’t emitting light? Coz thats not the case. And of course the sunlight reaches us in around 8 minutes. So whats with the 30,000 figure?

    • Dear Edd,

      Thanks for your question..Indeed it’s confused fact..
      The energy in the sunlight which we get today started out in the core of the Sun 30,000 years ago. It spent most of this time passing through the dense atoms in the sun and just 8 minutes to reach us once it had left the Sun.

      The light hitting the earth right now is 30 thousand years old as it started out in the core of the Sun 30,000 years ago. It passed through the dense atoms that make the sun and just 8 minutes to reach us once it had left the Sun.

      Clears Skies,

  4. So if anything visible happened to the sun’s core, it would have occured 30,000 years + 8 minutes ago?

    • Dear Edd,

      The 30000 years is for nuclear fusion which has modified the composition by converting hydrogen into helium in the core of the Sun and moving the energy (heat, light, etc) to the surface of the Sun.

      The light and heat are born during the conversion moment..

      The 8 minute refers to the speed of light only transferred from the Sun Surface to Earth Atmosphere..

      Clear Skies

  5. At fact 16 there stands that all the planets (it’s unknown if they are talking about the whole universe of just our galaxy) are 4.544 billion years old. But at fact 28, the ‘Genesis Planet’ is 12.7 billion year old.. Seems to me that this is going against each other, isn’t it?

  6. Gurmeet Singh

    very interesting facts

    i liked it! πŸ™‚

  7. looking to sky we look in the past.

  8. satish chandra gupta

    i have a question what was there when there was nothing?

    • Nothing at all.. even electron / a particle as mentioned in the holy Qur’an. Allah was the only one.
      This will happen again on the dooms day.. Nothing will be alive, Nothing at all will exists except Allah (God)

  9. satish chandra gupta

    during big bang matter expanded faster than light.but nothing can move faster than light.what mystry is there behind it?

    • This is a mythology describing how fast was the big bang..
      Actually there are things which are faster than light as mentioned in the Qur’an, but we don’t know yet & cannot prove it yet..

  10. satish chandra gupta

    how can we see to future by looking sky?please,explain.

  11. satish chandra gupta

    will you believe yesterday i went future.do you know how?

  12. Above you said the light from the sun is 30,000 years old. I thought It only takes 8 minutes for the light from the sun to get to Earth? Or are you counting the possible time the light is bouncing around inside the sun?

    • You are right Brandon..as you said “the possible time the light is bouncing around inside the Sun” .. You question is the same as {Edd} asked above.. Please refer to my replies to him above for more clarity. πŸ™‚

  13. I love all thae facts, Cept the first one shoulda been clarified that about 77.2% of Saturn would be underwater. Still technically floating though. Yeah.

  14. AWESOME STUFF! My teacher loves it. I got an A+. I like the video too. Can u just tell me what music is it, so I can download it. It would be really helpful. THANKS A LOT!

  15. Thanks a lot really helped

  16. my teacher wants to know if u had any other sites for space and astronomy, do u ? I need an answer in 12 hours THANKS

  17. This is great brother Mundhir, blew my mind.
    Astronomy makes you realise how vast Allah’s
    Power is and like much of science, astronomy
    still remains so unknown to man – the more
    we learn, the more we realise how little we
    know! Fascinating, science and nature is
    beautiful. Allah is Great!

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  19. Mars is not covered in iron oxide, it is not red! some of the other facts here are very dubious!

  20. No, 47? Free liquid falling on Earth automatically forms a perfect globe, that is why we have “lead- shot towers! Molten lead was poured from the top to fall into a pool of water, by the time the droplets of lead hit the water they were sufficiently hard so as not to deform when they hit the water!

  21. it was a very intresting facts i have enough facts for my work

  22. I’m doing a report this helps

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  26. “Space is not a complete vacuum, there are about 3 atoms per cubic meter of space.”
    As a matter of fact, my understanding is that we can’t create a perfect vacuum even in the lab. I propose that the ‘space’ outside our universe IS a perfect vacuum and our universe is expanding as a result. This is the long-sought-after ‘dark energy’. Dark energy is not positive and inside our universe, but is negative and outside.

  27. I love science …..astraunomy so interesting

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  29. awsum facts but can I get info about sun’s refractive index

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  32. Scientists Claim:The Sun Will Destroy Earth Sooner Than You Might Think

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  34. just a curious girl

    didn’t get it in fact no. 44 it says that the nearest black hole is 1600 light years away. What is the maximum distance from which black hole can attract things?

  35. OMG you wrote these 50 facts in 700+ words great! It’s an information rich post! Here is my list https://scitechtrend.com/interesting-astronomy-facts-information/

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