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How did the Apollo computers evaluate transcendental functions like sine, arctangent, log?

apollo-program history mathematics flight-computer asked Sep 27, 2018 at 10:18

space.stackexchange.com

118 votes

What makes Ada the language of choice for the ISS's safety-critical systems?

iss safety software flight-computer computing asked Jun 3, 2019 at 7:37

space.stackexchange.com

100 votes

What aspects of image preparation workflows can lead to accidents like Boris Johnson's No. 10 tweet's 'hidden message'?

image asked Nov 11, 2020 at 1:59

security.stackexchange.com

94 votes

How much bigger could Earth be, before rockets wouldn't work?

launch rockets payload escape-velocity performance asked Mar 9, 2016 at 7:45

space.stackexchange.com

86 votes

What can the KSP game actually teach about spaceflight and orbital mechanics, and what are its limitations?

orbital-mechanics crewed-spaceflight uncrewed-spaceflight kerbal-space-program education asked Aug 30, 2017 at 3:57

space.stackexchange.com

83 votes

Could "peak Apollo levels" of support have gotten NASA astronauts to Mars in the 1980's?

mars crewed-spaceflight apollo-program asked Jun 20, 2018 at 4:06

space.stackexchange.com

70 votes

Why did it take so long to notice that the ozone layer had holes in it? Which satellite provided the data?

nasa atmosphere earth-observation weather asked Jan 11, 2021 at 14:15

space.stackexchange.com

66 votes

What's the physics behind XKCD #2027 (time between lightning flash and radio wave burst)?

visible-light electromagnetic-radiation refraction radio radio-frequency asked Aug 1, 2018 at 14:38

physics.stackexchange.com

65 votes

Editing bounty messages, is it finally time for a little "Love"? (anti-Doh! feature request)

discussion feature-request bounty bounty-remarks asked Feb 18, 2019 at 1:36

meta.stackexchange.com

64 votes

How is stacking oranges in 24 dimensions related to receiving and decoding signals from the Voyagers?

history voyager data-transmission noise algorithms asked Jul 7, 2021 at 11:48

space.stackexchange.com

Top Answers

102

If a massive object like Jupiter flew past the Earth how close would it need to come to pull people off of the surface?

astronomy.stackexchange.com

Are there any satellites in geosynchronous but not geostationary orbits?

space.stackexchange.com

Sun constantly converts mass into energy, will this cause its gravity to decrease?

astronomy.stackexchange.com

Why vent $CO_2$ and $H_2$ waste products to space on ISS?

space.stackexchange.com

Is pinging the Moon with a laser as shown on "The Big Bang Theory" possible?

space.stackexchange.com

Why didn't the Space Shuttle bounce back into space as many times as possible so as to lose a lot of kinetic energy up there?

space.stackexchange.com

The dreaded apocalyptic asteroid approaches Earth but lands safely on the Moon at zero relative velocity

space.stackexchange.com

Why is JWST parked in sunlight, rather than using a nuclear battery?

space.stackexchange.com

Could a space colony 1g from the sun work?

space.stackexchange.com

Why does the alignment evaluation image from JWST look like this?

astronomy.stackexchange.com

How does the earth cast straight and reversed shadows on the moon?

astronomy.stackexchange.com

Why does the sky of Mars appear blue in this video of pictures sent back by the Chinese rover?

space.stackexchange.com

Is the SpaceX Falcon Heavy payload (a Tesla car) space junk?

space.stackexchange.com

Why did multiple nations decide to launch Mars projects at exactly the same time?

space.stackexchange.com

Why does the Moon appear gray when passing between the Sun and the Earth?

astronomy.stackexchange.com

If a balloon lies within gun range, why would a 21st century warplane shoot it with a missile, instead of rotary guns?

aviation.stackexchange.com

Is Nibiru real or totally science fiction?

space.stackexchange.com

What is this wavy light coming through my blinds?

physics.stackexchange.com

What would it take to get a message to another star?

space.stackexchange.com

How is the altitude of a satellite defined, given that the Earth is not spherical?

space.stackexchange.com

What impact will the deorbiting of thousands of satellites have on the atmosphere?

space.stackexchange.com

Help with becoming overly obsessive (about mathematics)

academia.stackexchange.com

Could we carve a large radio dish in the Antarctic ice?

astronomy.stackexchange.com

Which LEO satellite lost over 30 km of altitude in the geomagnetic storm of 13-14 March 1989?

space.stackexchange.com

How far have astronauts been in space?

space.stackexchange.com

Are images of exoplanets' surfaces technically possible?

space.stackexchange.com

Is Venus in some way tidally locked to... Earth?

astronomy.stackexchange.com

How can electronics on board of JWST survive the low operating temperature while it's difficult to survive lunar nights?

space.stackexchange.com

Is it ethical for Chang'e-4 to bring an entire ecosystem to the moon?

space.stackexchange.com

Is it possible to see mercury transit "clearly" by the naked eye?

astronomy.stackexchange.com