Most viral Cosmology questions on Quora
Ranked by real engagement we track — views, upvotes, comments and shares per question. Updated continuously.
191Questions tracked
4.3MTotal views
57.7KTotal upvotes
645.2KVirality score
1
What would happen to Earth if a 5kg metal ball from space is thrown toward it at 99.99% of the speed of light?
The relativistic increase in mass of the metal ball due to velocity (70 times) x 5 kg means the ball will have an effective mass of 350 kilograms , put…
👁 763.3K
⬆ 2.4K
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🔄 6
· Anonymous on Quora
2
How do we know the Earth is 4.5 billion years old?
Tiny zircon crystals.Zircon, when it is forming, readily incorporates uranium into its crystal lattice. On the other hand, it strongly rejects lead. You woul…
👁 289.7K
⬆ 11.6K
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· Anonymous on Quora
3
Why is the speed of light so small relative to the size of the universe?
That’s a good question since so many people imagine that the speed of light is very fast, when it is extremely, extremely slow in an astronomical context. An…
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· Anonymous on Quora
4
If we can't see anything faster than the speed of light, how do we confirm that this is the fastest speed in the universe?
We can see things faster than the speed of light. For example, if we sweep a laser beam across the moon, the velocity of the spot can easily exceed the speed…
👁 309.2K
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· Anonymous on Quora
5
Will the sun ever burn out?
Yes. The sun will eventually die, one day. In about 5 billion years, give or take. Our star will run out of its hydrogen and turn into a red giantIt will swa…
👁 189.4K
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· Anonymous on Quora
6
What would be the heaviest possible mass per cm³ on Earth comparable with a teaspoon of neutron star matter?
The most dense naturally occurring substance on Earth is the metal osmium. Uranium has a higher atomic number, but osmium is packed tighter. Anything on Eart…
👁 123.7K
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· Anonymous on Quora
7
What did our solar system look like 4.5 billions years ago?
4.5 billion years ago the solar system looked about the same as it does today. The main differences were as follows:The sun was about 30% less bright than to…
👁 107.7K
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· Anonymous on Quora
8
Is it really scientific that science thinks the observable universe would fit inside a small volume much smaller than an atom? Why do scientists find this consistent with theory and observation?
Q: Is it really scientific that science believes the entire matter necessary for the creation of the universe fit inside a singularity much smaller than an a…
👁 58.2K
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· Anonymous on Quora
9
If you were inside the Sun for an attosecond, would you survive?
This is an “everyone dies” scenario. Obviously, this is physically impossible, but an interesting thought experiment. As others have mentioned in their answe…
👁 127.2K
⬆ 494
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· Anonymous on Quora
10
Where do Hindus believe they come from?
We all have an unshakeable belief, passed down to us through generations, that we are all born from the loins of our blessed parents. Nothing will convince u…
👁 116.5K
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· Anonymous on Quora
11
What exists in the gap between galaxies? For example, the gap between the Milky Way and the Andromeda Galaxy. Is it a complete void?
Actually, not really. Both galaxies - i.e. Milky Way & Andromeda - could even be ‘touching’ each other already by their vast expanding dark matter halos. The…
👁 89.2K
⬆ 962
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· Anonymous on Quora
12
Is gold rare throughout the universe, or is it only rare on Earth?
👁 67K
⬆ 1.4K
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· Anonymous on Quora
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