Recent questions in Astronomy

+18 votes

0 answers

Is hydrogen the most abundant gas in the universe, as it is found in stars and help them in fusion reaction?

asked Apr 20, 2023 in Astronomy by EmberTwilight

+6 votes

0 answers

Can a large enough star create more than one planet in its protoplanetary disk?

asked Apr 20, 2023 in Astronomy by Naesure

+229 votes

0 answers

In 1 billion years the earth won’t be habitable. There won’t be oxygen or plants. If humanity never manages to colonize other planets, then does that mean everything we’ll ever accomplish here be meaningless and unimportant in the long run?

asked Apr 20, 2023 in Astronomy by proby

+14 votes

0 answers

How common is life on Earth compared to other planets?

asked Apr 20, 2023 in Astronomy by AstralScribe

+6 votes

0 answers

Can we detect intelligent life on other planets using radio telescopes from Earth?

asked Apr 19, 2023 in Astronomy by SeraphicFlare

+13 votes

0 answers

Aside from astronomical absurdities in the Expanse series, why does it show that the heroine can survive in open space for a while without a space suit?

asked Apr 19, 2023 in Astronomy by decorator A1

+6 votes

0 answers

If you could name a new planet, how would you name it?

asked Apr 19, 2023 in Astronomy by AstralScribe

+12 votes

0 answers

What determines how close two stars in a binary system can be? Is it the mass of the two stars or does it just depend on how close they formed together? If it’s the first, Is there an equation to figure this out?

asked Apr 19, 2023 in Astronomy by MysticSculptor

+16 votes

0 answers

Is CO2 primarily responsible for dropping temperatures of calm dry air under a total solar eclipse?

asked Apr 19, 2023 in Astronomy by aloofsulphur

+27 votes

0 answers

Do we have photographic evidence of a distant star or Galaxy suddenly appearing because its light just reached us?

asked Apr 19, 2023 in Astronomy by AstralCharm

+176 votes

0 answers

Why is sci-fi obsessed with planets? Advanced alien civilizations should know how useful rotating space habitats are.

asked Apr 19, 2023 in Astronomy by AstralWhirl

0 votes

0 answers

What is the minimum rotation speed for a planet or star to break free from its own gravitational field?

asked Apr 19, 2023 in Astronomy by jacobs6

+11 votes

0 answers

What is the name of the Galaxy that contains our solar system, and what is its approximate distance from Earth (in light years)?

asked Apr 19, 2023 in Astronomy by Dtadaz

+14 votes

0 answers

What are the order of planets in size, largest to smallest?

asked Apr 19, 2023 in Astronomy by NebulaEcho

+26 votes

0 answers

How long is the day on Venus?

asked Apr 19, 2023 in Astronomy by fillyboy

+21 votes

0 answers

Do constellations form over time, or are they random?

asked Apr 19, 2023 in Astronomy by tonynoarm

+19 votes

0 answers

Why is Voyager 1 not crushing into any object, planet, or a star?

asked Apr 19, 2023 in Astronomy by what2do

+10 votes

0 answers

How does seeing a total solar eclipse compare to other natural wonders or phenomena you have witnessed?

asked Apr 19, 2023 in Astronomy by chappers

+910 votes

0 answers

Do any other planets have visible ring systems like Saturn's outside our solar system?

asked Apr 19, 2023 in Astronomy by SeraphicWhisper

+15 votes

0 answers

In Back to the Future, when Einstein traveled forward in time in Doc Brown's DeLorean time-machine, shouldn't he have reappeared somewhere else on Earth, if the planet is orbiting the Sun, and Marty, Doc, were further along the Earth's orbit?

asked Apr 19, 2023 in Astronomy by SolarisScribe

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Recent questions in Astronomy

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