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Most viral Cosmology questions on Quora

Ranked by real engagement we track — views, upvotes, comments and shares per question. Updated continuously.

115Questions tracked
2.7MTotal views
37.9KTotal upvotes
411.9KVirality 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…
🔥 85.5K 👁 763.3K ⬆ 2.4K 💬 181 🔄 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…
🔥 66.4K 👁 289.7K ⬆ 11.6K 💬 0 🔄 107 · Anonymous on Quora
3 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…
🔥 25.6K 👁 189.4K ⬆ 1.8K 💬 0 🔄 46 · Anonymous on Quora
4 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…
🔥 20.7K 👁 123.7K ⬆ 2.3K 💬 64 🔄 30 · Anonymous on Quora
5 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…
🔥 14.8K 👁 107.7K ⬆ 1K 💬 35 🔄 27 · Anonymous on Quora
6 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…
🔥 13.6K 👁 116.5K ⬆ 603 💬 0 🔄 5 · Anonymous on Quora
7 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…
🔥 13K 👁 89.2K ⬆ 962 💬 53 🔄 28 · Anonymous on Quora
8 If energy cannot be created, how did the Big Bang create everything?
Energy cannot be created or destroyed within this universe. Actually, the law of conservation of energy states that the total energy of an isolated system re…
🔥 9.6K 👁 57K ⬆ 613 💬 182 🔄 11 · Karl Jansson on Quora
9 How much smaller does the Sun get every day?
Interestingly, the sun doesn’t get smaller every day. It actually gets bigger.Now, I know that doesn’t make sense. The Sun loses 6*10^12 grams of mass every…
🔥 9.6K 👁 64.6K ⬆ 870 💬 0 🔄 22 · Anonymous on Quora
10 What will the black hole era look like?
Besides easier travel at speeds close to the speed of light, the grim Black Hole Era of the Universe will be a dreadful time of darkness, struggle, decay, an…
🔥 9.4K 👁 45.2K ⬆ 1K 💬 129 🔄 22 · Anonymous on Quora
11 What material is available on Earth, but is rare throughout the Galaxy?
Americium. Element number 95. It is not a naturally occurring element and is produced in nuclear reactors. Go and look at your smoke alarm. That contains mor…
🔥 8.2K 👁 37.2K ⬆ 1.5K 💬 0 🔄 2 · Anonymous on Quora
12 Is gold rare throughout the universe, or is it only rare on Earth?
🔥 7.9K 👁 58.2K ⬆ 559 💬 32 🔄 5 · Anonymous on Quora
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