Most MYSTERIOUS Facts About Stars!

Check out the Most MYSTERIOUS Facts About Stars! From the biggest stars in our solar system to other bizarre facts about our universe, this top 10 list of strangest astronomy facts will amaze you!

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10. Star Classifications
Have you ever noticed that stars names are kind of complicated? You may have seen sci-fi shows or movies where they give stars a category, but things are actually far more complicated. There are 11 different letter classifications, each that refer to a star’s temperature, luminosity, and color. O and B type stars, for example, usually appear to be blue, and are some of the hottest objects seen in the universe..

9. Stars Don’t Twinkle
I know, sad but true right? When you look up to the clear sky at night you’ll see a wide range of stars. Looking closely, you will probably even see some of them twinkling, but this apparent switching on and off of the light has nothing to do with the actual stars themselves.

8. How big do stars get?
While our own star, the sun, is a fairly common type throughout the galaxy, there are ones that absolutely dwarf it in terms of size and brightness. In fact, every single star that you see in the night sky is many times larger and brighter than the sun, because it’s only those that produce enough light to reach us.

7. How many stars?
How many stars do you think there are in the Universe? The amazing thing is that, no matter how huge a number you guess, there are probably far, far more out there. To understand how many there actually are, astronomers first calculate the estimated number of galaxies. With our current understanding, it’s thought that there are about 170 billion galaxies in the observable universe, stretched out across 45.7 billion light years.

6. Red and Blue
While many images that we see of stars in space have been created with a certain amount of artistic license, there’s one thing for sure… stars can be seen in a wide range of colors, but what we learn from these colors is somewhat counter-intuitive. Two of the colors most often seen are red and blue. On earth, we typically associate the color red with things that are hot, like a fire or a glowing hot piece of metal, and the color blue is more associated with things that are cold, such as ice.

5. How close are stars?
When you look at the sky, especially on a clear night, it seems like the stars are quite close to each other. Our grouping of them together into constellations also gives the impression that there’s not a great distance between them, but this couldn’t be further from reality.

4. Star Groups
Despite the vast distances between star systems, our sun is actually unusual for the fact that it’s on its own. Most stars actually tend to cluster together into groups of two or more. Bound by the gravitational forces, as many as 60 per cent of stars remain in these groups.

3. Star Brightness
Stars come in a variety of shapes and sizes… and brightness. The brightest star in our sky is, of course, our sun… but it’s pretty unremarkable in the grand scheme of things. The dimmest star to have ever been recorded is a brown star called RG 0058.8-2807. It is also the smallest star to have been detected, at only 0.014 times the size of our own sun… and is one million times less bright.

2. The Stars We See At Night
We’ve already seen how there are about 1 septillion stars in the observable universe, but how many do you think are observable with the eye from earth? If you look up on a clear night from a place with no light pollution, the entire sky is dotted with stars, but you’re not seeing anywhere near as many as you may think.

1. How long do stars live?
The life expectancy of a star is directly related to its total mass, which indicates how much fuel it has to burn. Somewhat counter-intuitively, those with the biggest mass die much quicker than those that start with less. This is because the bigger the mass of the star, the faster it burns its supply of fuel.

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38 thoughts on “Most MYSTERIOUS Facts About Stars!

  1. Johanna Ramirez May 16, 2019 at 12:13 pm

    So we die wen the sun die

  2. SpaceStuff May 16, 2019 at 12:13 pm

    I knew all of this

  3. Ivan Vranic May 16, 2019 at 12:13 pm

    Fahrenheit? Get out from the hole

  4. Elvir Avdiji May 16, 2019 at 12:13 pm

    Really i can think infinit

  5. SysPowerTools May 16, 2019 at 12:13 pm

    CY is not the largest anymore.

  6. POPPA SMURF May 16, 2019 at 12:13 pm

    think about this…if you don't marry me, then you will wind up not marrying me. can you live with yourself if this happens? i think NOT!

  7. POPPA SMURF May 16, 2019 at 12:13 pm

    marry me you could concievably do worse, thoiugh it would be hard

  8. Gary Daniel May 16, 2019 at 12:13 pm

    The biggest stars have the most drama. Or is that Hollywood?

  9. Gary Daniel May 16, 2019 at 12:13 pm

    The Stars being so hot is why we only go to the Sun at night.

  10. Ivan Romanov May 16, 2019 at 12:13 pm

    100 billion galaxies? Methinks there are 3 too many zeros in the number on screen.

  11. alxxpspqr May 16, 2019 at 12:13 pm

    Great and informative video!

  12. Morteza Ladda May 16, 2019 at 12:13 pm

    Www 🤔😍

  13. Jared Quinney May 16, 2019 at 12:13 pm


  14. Ray Navarre May 16, 2019 at 12:13 pm

    I'm getting bored with their uploads lately. I want real human interest, new and not sounding like classroom discussions. Something like Ripley's Believe or Not.

  15. Eddie5150 Reischl May 16, 2019 at 12:13 pm

    Minor thing, the narrator said 170 billion galaxies (170,000,000,000) and the number shown on the screen was 170 trillion (170,000,000,000,000)

  16. Sam May 16, 2019 at 12:13 pm

    Katrina is a twinkle star.

  17. Elizabeth Petrick May 16, 2019 at 12:13 pm


    Edit: AL HAIL MI!!!!

    Edit2: WE WILL ALL DIE! 😀 (what the frick)

  18. mel lee-johnsson May 16, 2019 at 12:13 pm

    An astronomy video, yes please!!

  19. Nathan G May 16, 2019 at 12:13 pm

    So, not only does Canis Major get the brightest star in the night sky (Sirius), but now it gets the largest star known (VY Canis Majoris)?

  20. Todd Dembsky May 16, 2019 at 12:13 pm

    Katrina, where have you gone? I miss those wonderful smiles that you do in the videos.

  21. Richard Tucker May 16, 2019 at 12:13 pm

    Awesome FYI Katrina. Keep it up!

  22. -Tommyf360 - May 16, 2019 at 12:13 pm

    Nice vid

  23. james briggs May 16, 2019 at 12:13 pm

    thanks katrina

  24. pubg-mobile savage mode May 16, 2019 at 12:13 pm

    Our solar system is unique

  25. Fuck You May 16, 2019 at 12:13 pm

    Vy canis mojaris is small now it’s 3rd place Uy scuti is bigger and the biggest is Quasi star as big as the sun to Pluto

  26. pubg-mobile savage mode May 16, 2019 at 12:13 pm

    Love your content

  27. Tham Wui Yoong May 16, 2019 at 12:13 pm

    if our Sun get hotter, bigger 10% more, the life on earth are long gone by then, about another a million year or 10 million years.

  28. Watashi wa bakadesu May 16, 2019 at 12:13 pm

    How can facts become mysterious… there already proven… so there's no reason for it to be mysterious. 🙂

  29. Athena_121 Gacha Gurl May 16, 2019 at 12:13 pm

    20th Commenter hehe

  30. Pro. Logic May 16, 2019 at 12:13 pm

    3:10 How many stars in the Universe ?, all of them.

  31. AJAIBAT E DUNYA May 16, 2019 at 12:13 pm


  32. LOVE/LONDON FAITH/FRANCE May 16, 2019 at 12:13 pm

    Good News😊

  33. Cindy Rose May 16, 2019 at 12:13 pm

    The star of Bethlehem proclaimed the birth of our Lord & Savior Jesus Christ of Nazereth. That was at His first coming, which he came, God in the flesh, to save us.

    It is time now for Jesus Christ's second coming and this time He comes to wage war against all those who did not obey the gospel, all those who do what is right in their own eyes.

    Please be ready! Make sure you are right with God through His Son Jesus Christ. Go to Jesus Christ with a repentant and sincere heart. Receive Jesus as your Lord and Savior. Surrender your life to Jesus!

    Jesus Christ, I come to you a sinner, I repent of all my sins and ask for your forgiveness. I believe you are the Son of God, that you went to the cross, died in my place, paying my sin debt and that you were buried & rose on the 3rd day to everlasting life. Jesus, right now, I choose to receive you as my Lord and my Savior, trusting in you alone for my salvation. I surrender my life to you and ask for your will to be done. I invite your Holy Spirit to come into my heart to make me more like you. Thank you for your forgiveness. Thank you for filling me with the Holy Spirit and for your gift of eternal life in Heaven. Amen!

    ~ ~ ~ ~ ~ ~ ~ ~ ~ ~


    1)  For ALL have sinned, and come short of the glory of God – Romans 3:23

    2)  For the wages of sin is death, but the GIFT OF GOD is eternal life in Christ Jesus our Lord – Romans 6:23

    3) ♡ TRUTH… God made Jesus Christ, who never sinned, to be the offering for our sin, so that we could be made right with God through Christ – 2 Corinthians 5:21

    4) ♡ THE GOSPEL…Jesus Christ, God the Son, went to the cross, Died in your place, Paying your sin debt…He was buried & rose on the 3rd day to everlasting life.

    WARNING… Whoever BELIEVES in the Son (Jesus Christ) has eternal life, but whoever REJECTS the Son will not see life, for God's wrath remains on them – John 3:36

  34. mikemichaelmusic09 May 16, 2019 at 12:13 pm

    Hi Katrina

  35. sai nath May 16, 2019 at 12:13 pm

    Even I am a STAR, by the time this message reaches YOU, I ll be long GONE.But YOU also enjoy my collapse tho.

  36. O'SSÉIN - Master Your Mind With Me May 16, 2019 at 12:13 pm

    That the SUN is a star!
    I remember my mind was blown when I learned it.

  37. Zenn Lozanno May 16, 2019 at 12:13 pm

    twinkle twinkle little star…

    oh wait, they're not little.. My whole life is a lie

  38. 2020H5 May 16, 2019 at 12:13 pm

    I love this channel cuz I love that explaining sound that she talks!
    XD and all of the facts form all videos are VERY INTERESTING!

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