• 100 Space Facts
  • Interesting Space Facts

Top 100 Interesting Facts About Space

Space has fascinated man since the very beginning, there’s a whole universe of mystery and beauty still waiting to be discovered. But not all of it is a mystery, here we’re going to look at the top 100 interesting facts about space that are truly out of this world!

  1. Mercury and Venus are the only two planets in our solar system that do not have any moons.
  2. If a star passes too close to a black hole, it can be torn apart.
  3. The hottest planet in our solar system is Venus. Most people often think that it would be Mercury, as it’s the closest planet to the sun. This is because Venus has a lot of gasses in its atmosphere, which causes the “Greenhouse Effect.”
  4. The solar system is around 4.6 billion years old. Scientists estimate that it will probably last another 5,000 million years.
  5. Enceladus, one of Saturn’s smaller moons, reflects some 90% of the sunlight, making it more reflective than snow.
  6. The highest mountain known to man is the Olympus Mons, which is located on Mars. Its peak is 15 miles (25 km) high, making it nearly 3 times higher than Mount Everest.
  7. The Whirlpool Galaxy (M51) was the very first celestial object to be identified as being spiral.
  8. A light-year is the distance covered by light in a single year; this is equivalent to 5.88 trillion miles (9.5 trillion km).
  9. The width of the Milky Way is around 100,000 light-years.
  10. The Sun is over 300,000 times larger than Earth.
  11. Footprints and tire tracks left by astronauts on the Moon won’t disappear as there is no wind to blow them away.
  12. Because of lower gravity, a person who weighs 220 lbs. (100 kg) on Earth would only weigh 84 lbs. (38 kg) on the surface of Mars.
  13. Scientists believe there are 67 moons that orbit Jupiter, however only 53 of these have been named. Jupiter also has the most moons in our galaxy.
  14. The Martian day is 24 hours 39 minutes and 35 seconds long.
  15. NASA’s Crater Observation and Sensing Satellite (LCROSS) declared that they have found evidence of significant amounts of water on the Earth’s Moon.
  16. The Sun makes a full rotation once every 25-35 days.
  17. Earth is the only planet not named after a god.
  18. The force of gravity can sometimes cause comets to tear apart.
  19. It is thanks to the Sun and our own moons gravity that we have high and low tides.
  20. Pluto is smaller than the Earth’s moon. It’s even smaller in diameter than the United States.
  21. According to mathematics, white holes are possible, although as of yet we have found none.
  22. Our moon is around 4.5 billion years old.
  23. There are more volcanoes on Venus than any other planet within our solar system.
  24. Uranus’ blue glow is down to the methane in its atmosphere, which filters out all the red light.
  25. The four planets in our solar system that are known as gas giants are Jupiter, Neptune, Saturn and Uranus.


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About the Author

Avatar for Luke Ward
Luke Ward is the founder of The Fact Site. He's a professional blogger & researcher with over 9 years’ experience in fact finding, SEO & web design. In his spare time he loves to travel and drink coffee.



  1. Avatar for Luke Ward
    Art 3rd September 2018 at 12:14 am - Reply

    .13 says Jupiter has the most moons in our galaxy. I don’t believe that can be verified. Maybe they meant in our solar system?

  2. Avatar for Luke Ward
    Yacqub Hassan 22nd February 2018 at 4:06 pm - Reply

    Same here and it wont last another 5 million years!!!!!

    • Avatar for Luke Ward
      Lincoln Kilday 30th October 2018 at 1:05 pm - Reply

      5 thousand, or 5 billion

  3. Avatar for Luke Ward
    Shankar bhandari 12th December 2017 at 4:03 am - Reply

    The sun is nearly 1000000 times larger than the earth….. which is equal to cube of 109…….

    • Avatar for Luke Ward
      Chase Serrapica 14th February 2018 at 2:36 pm - Reply

      noboby cares

  4. Avatar for Luke Ward
    Peter Gordon 29th November 2017 at 7:13 pm - Reply

    this is sooooo good

  5. Avatar for Luke Ward
    Jana Haitham 15th September 2017 at 2:59 pm - Reply

    What is the white hole???

  6. Avatar for Luke Ward
    Msgana Berhe 11th May 2017 at 8:51 pm - Reply


  7. Avatar for Luke Ward
    Lawlzer 20th March 2017 at 7:23 pm - Reply

    If you go into a blackhole, it’s impossible to escape, well, let me try to explain (I’m not an astro-physisist, so my explanations may be terrible)
    A blackhole has a, what we call, the “event horizon,” which is basically the point where nothing can escape, ever. (Even light!) So, if you went close to the event horizon, it would be hard to escape, but if you had certain stuff, possible. If you went into the event horizon, you would be “Spaghettified,” aka your body would stretch and stretch until you died, as the parts closer to the blackhole would expand, further away from would be smaller.
    If the blackhole reaches a sun, or anything, the sun would go into it, and the blackhole would expand with the extra mass. Holy length!

  8. Avatar for Luke Ward
    Patric Decentaurus 16th February 2017 at 4:56 am - Reply

    What’s full name of R136a1…

    • Avatar for Luke Ward
      Luke Ward 17th February 2017 at 4:01 pm - Reply

      It’s full name is actually RMC 136a1 – although it’s usually abbreviated to R136a1.

  9. Avatar for Luke Ward
    Dr Dre 16th November 2016 at 10:33 am - Reply

    it will then create a wormhole!I

  10. Avatar for Luke Ward
    yaswanth 14th October 2016 at 9:53 am - Reply

    what do you mean by white hole?

  11. Avatar for Luke Ward
    Dean Denton 8th August 2016 at 10:24 pm - Reply

    Thank you for these excruciating, competent and superlative facts, well done!

  12. Avatar for Luke Ward
    Cory Matthews 13th June 2016 at 4:05 pm - Reply

    In fact 13 it says that Jupiter has 64 moons, but in fact 52 it says Jupiter has 63 moons, which is correct?

    • Avatar for Luke Ward
      Luke Ward 17th June 2016 at 12:59 pm - Reply

      Thanks for letting us know! We’ve updated this now as more have been discovered since this article was written, but Jupiter has 53 moons which have been named, and another 14 moons have been discovered, that’s 67 in total!

      • Avatar for Luke Ward
        Cory Matthews 17th June 2016 at 7:15 pm - Reply

        You’re welcome! Wow, that’s a lot of moons!

  13. Avatar for Luke Ward
    Luke Ward 25th May 2016 at 4:35 pm - Reply

    That’s a good point! Thanks for correcting us, I’ve updated it 🙂

  14. Avatar for Luke Ward
    A Father 24th December 2015 at 5:01 am - Reply

    2 is most certainly wrong.. didn’t read any after that. There are over 100 million. Sorry this was just a sad attempt..

  15. Avatar for Luke Ward
    yolo 28th March 2014 at 4:54 am - Reply

    no.41 mistake for minutes

  16. Avatar for Luke Ward
    poopp:) 13th March 2014 at 11:58 pm - Reply

    thnx im using some of these for an essay:)))))

  17. Avatar for Luke Ward
    Ken M 31st January 2014 at 9:49 pm - Reply

    8. It’s 6 *Trillion* (not billion)

    11. First, it’s tire, not tyre. Second, they’ll be gone eventually due to the moon’s constant bombardment of microparticles that hit it every day. These particles would normally burn up in the atmosphere, but there is none, so they erode them away.

    89. If there are 2 x 10^23 stars in space, the number would be 200,000,000,000,000,000,000,000. You were missing 6 zeros.

    92. Mecury Day is 58 days, It’s year is 88 days

    93. Normal pens won’t work.

    These were just the ones I caught from skimming the beginning and end of the article.

  18. Avatar for Luke Ward
    S. Fry (Not the famous one) 19th January 2013 at 2:16 pm - Reply

    44. ‘If you was driving at 75 miles (121 km) per hour, it would take 258 days to drive around one of Saturn’s rings.’

    Should be if you *WERE driving.

    56. ‘The distance between the Sun and Earth is define as a Astronomical Unit, or AU for short.’

    Should be *AN Astronomical Unit.

    Sorry to be a pedant, but those basic English mistakes take away from the otherwise brilliant list.

    On a lighter note, I love your site, keep up the good work.

    • Avatar for Luke Ward
      Luke Ward 21st January 2013 at 5:51 pm - Reply

      Thank you Non-famous Steven Fry, these mistakes were corrected 🙂

  19. Avatar for Luke Ward
    Kyouki 9th November 2012 at 5:10 pm - Reply

    I see multiples…

    • Avatar for Luke Ward
      Luke Ward 13th November 2012 at 12:42 pm - Reply

      Where? And I’ll update it.

      • Avatar for Luke Ward
        Kyouki 14th November 2012 at 12:53 am - Reply

        86 and 71

        • Avatar for Luke Ward
          Luke Ward 17th November 2012 at 1:47 pm - Reply

          Thanks! These have been changed now.

    • Avatar for Luke Ward
      Luke Ward 11th December 2012 at 7:58 pm - Reply

      There were multiple facts the same, I’ve changed them now though.

  20. Avatar for Luke Ward
    PSY 9th October 2012 at 2:08 am - Reply

    Oppa Gangnam Style

  21. Avatar for Luke Ward
    Jimmy 3rd July 2012 at 10:41 pm - Reply


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