OpenTube

We Finally Know How Big the Universe Is — And It’s Insane

Deep Space News

186,203 views

How big is the universe, really? In this video, we explore the true scale of space — from Earth and the Sun, all the way out past the Oort Cloud, light years, the nearest star Proxima Centauri, the Milky Way galaxy, supermassive black holes, dark matter, dark energy, and the edge of the observable universe. You'll discover mind-blowing space facts about planet sizes, star sizes like Betelgeuse and UY Scuti, the Andromeda galaxy collision, the Laniakea supercluster, and just how vast (and mysterious) our universe truly is.

If you love space facts, astronomy, and the universe explained in simple terms, hit subscribe for more deep dives into science, space exploration, and the cosmos.

🔔 Subscribe for more universe and space science videos
👍 Like this video if it blew your mind
💬 Comment which scale surprised you the most

20 Comments

@galenhaugh3158 1 month ago (edited)

NASA is currently proposing two hypotheses for the size of the total universe: 1) it is 250 times the observable universe, a sphere about 96 billion light years in diameter, and 2) there is no limit--it goes on forever. Stars without number, hence, galaxies without number. I personally favor the second hypothesis.

@LSSoloSG2 4 weeks ago

The universe is a galactic loop seemingly infinite, and no human will ever know different.

@SheldonPerkins 3 weeks ago

Getting anxiety just listening to this

@leonardgibney2997 1 month ago (edited)

I once saw a US film which started with a columb of ants morphing into a highway with cars. Looked the same. Some years ago the BBC Science unit did an experiment to see if the universe is bounded or unbounded in the four dimensions. Using the microwave background radiation they concluded the universe is indeed unbounded in the three dimensions of space and one of time. It did not begin and has no edge they said.

@michaelkuch5811 1 month ago

My girlfriend told me size doesn't matter - now I find out it really does 😮

@JamesTownsend-y1j 9 days ago

I'm in Philadelphia. Great video.

@walterhudson4253 3 weeks ago

The appearance of the Universe as a large globe settles in my mind as more true than theory. Attach a string to any ball and it will circle the ball in a perfect equal distance all around as far as the Universe its self. You can't go beyond a straight line to the extreme at any distance.

@Edgeofspace09 2 weeks ago

amazing information

@melissathomas7854 1 month ago

You weren’t kidding about the dizzying concept of measuring a bent perspective of appearance and distance. I am gonna have to do this one again! A favorite! Ty

@charlespermaul6966 3 weeks ago

This is awesome sir

@kingdomfor1 3 weeks ago

Space definitely goes on forever, it may be empty space, but there's no end , if there was an end ,a boundary, there would have to be more space on the other side.

@CharlieCoulson-Knight 6 days ago

New South Wales Australia
❤ the videos

@QueenDiamond-s4b 1 month ago

Good job

@malvinpeterson9618 1 month ago

Thanks for the video! I love it!

@mollydoran9488 3 weeks ago

you are everything' and everything is you!

@jeffr9631 1 month ago

This is insane. thank you

@ventman929 1 month ago

Absolutely great explanation of the enormity of this place actually is! At best, science can only guess the size. Never will they know the true size due to constant expansion, nor know how many star systems there are. Jodie Foster said it right...its a pretty big place!