Mark Foskey

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Why are the Pillars of Creation pillar-shaped?

star-formation nebulae asked Oct 25, 2022 at 4:41

astronomy.stackexchange.com

30 votes

Could the lunar module have moved to a different spot?

apollo-program lunar-landing lunar-module asked Mar 14, 2020 at 21:18

space.stackexchange.com

29 votes

Why is tantalum being used for the Hayabusa bullets?

probe materials sample-return asked Jul 30, 2019 at 4:38

space.stackexchange.com

17 votes

Why is a 2/3 vote required for the Dec 28, 2020 attempt to increase the stimulus checks to $2000?

united-states house-of-representatives house-rules asked Dec 28, 2020 at 22:58

politics.stackexchange.com

13 votes

What caused the jitter in the DART video as it approached Dimorphos?

orbital-mechanics probe asteroid flight-control dart asked Sep 27, 2022 at 20:42

space.stackexchange.com

11 votes

When regenerative cooling is used, how is the nonuniform radius of the combustion chamber handled?

propulsion engine-design asked Sep 9, 2018 at 21:39

space.stackexchange.com

11 votes

Are rogue planets ever born in isolation?

planetary-formation rogue-planet asked Apr 24, 2018 at 16:18

astronomy.stackexchange.com

10 votes

Is there a closest free-return trajectory to a black hole?

black-hole general-relativity supermassive-black-hole event-horizon asked Apr 11, 2021 at 20:47

astronomy.stackexchange.com

8 votes

How does the JWST sunshade cover release work?

james-webb-telescope mechanisms asked Dec 31, 2021 at 5:21

space.stackexchange.com

7 votes

How to understand Carlo Rovelli's notion that time "does not exist"?

quantum-mechanics time quantum-gravity loop-quantum-gravity asked Jul 5, 2018 at 20:05

physics.stackexchange.com

Top Answers

Why were the Voyager spacecraft numbered "out-of-order"?

space.stackexchange.com

Why can't the Earth's core melt the whole planet?

physics.stackexchange.com

"On the grounds that" suggests the reason isn’t really a good one

ell.stackexchange.com

Apollo: what was the big deal?

space.stackexchange.com

Does Virgin Galactic experience real weightlessness?

space.stackexchange.com

Why do we need to make probes land on other planets or moons?

space.stackexchange.com

Could liquid water have existed in open space 15 million years after the Big Bang?

astronomy.stackexchange.com

Why has Pakistan never faced the wrath of the USA similar to other countries in the region, especially Iran?

politics.stackexchange.com

Why doesn’t NASA build its rockets using graphene?

space.stackexchange.com

Why did Saturn V not head straight to the moon?

space.stackexchange.com

How can someone reject a math result if everything has to be proved?

math.stackexchange.com

If an astronaut threw a cup of coffee into space, would it freeze, or boil off into gas?

space.stackexchange.com

How feasible would this mission to Proxima Centauri be?

space.stackexchange.com

Why are probes that tend to explore outer system always launched to go outwards instead of straight upwards or downwards?

space.stackexchange.com

Why was the imaging quality of the Voyager probes *much* better than the Pioneer probes despite being launched only 5 years later?

space.stackexchange.com

Is it possible for a moon to have a higher surface gravity than the planet it is attached to?

space.stackexchange.com

Is there a word in a dead or lost language that we lost the definition to?

linguistics.stackexchange.com

Do professors need to pay to send letters of recommendation via postal mail?

academia.stackexchange.com

If Earth had a second moon, where would it be positioned?

space.stackexchange.com

Why can I see through this astronaut on the Apollo 11 footage?

photo.stackexchange.com

What is wrong with "have put" in "I have put the water in the freezer"?

ell.stackexchange.com

If a spaceship ran out of fuel somewhere in space between Earth and Mars, does it slowly drift off to the Sun?

space.stackexchange.com

Why did Neil Armstrong alone, not NASA, end up coming up with the first words uttered on the moon?

space.stackexchange.com

Would Hubble Space Telescope improve black hole image observed by EHT if it joined array of telesopes?

astronomy.stackexchange.com

Is "there is nowhere we can't go where we won't be recognized" a correct sentence?

english.stackexchange.com

What would happen if Venus and Earth collided?

astronomy.stackexchange.com

What does "reaction" in "reaction control system" and "reaction wheel" refer to?

space.stackexchange.com

Which specific law of physics is broken by the "double jump"?

physics.stackexchange.com

Is "obey" a stronger word than "observe" in the following sentence?

ell.stackexchange.com

Could a satellite survive for thousands of years in a high enough orbit?

space.stackexchange.com