Space Exploration Stack Exchange by Kiwix

Q&A for spacecraft operators, scientists, engineers, and enthusiasts

Most popular questions

187 Can I borrow a lunar rover? 2013-09-23T10:42:48.647

137 Couldn't I escape Earth's gravity traveling only 1 mph (0.45 m/s)? 2014-06-03T17:57:29.757

134 How did the Apollo computers evaluate transcendental functions like sine, arctangent, log? 2018-09-27T10:18:19.263

132 Nudism in space: Why wear clothes anyway? 2017-12-31T13:53:59.527

115 Do the planets really orbit the Sun? 2015-06-05T06:50:04.833

110 How many extraterrestrial bodies have hosted a "lander" which returned images? 2015-07-16T14:39:57.887

105 If the astronauts on Apollo 11 had landed safely on the moon but could not take off, would there have been a rescue mission? 2017-05-24T11:32:32.803

103 What are the choices today for orbital mechanics simulation software? 2013-07-23T01:03:32.103

101 What makes Ada the language of choice for the ISS's safety-critical systems? 2019-06-03T07:37:28.423

100 What is the purpose of having a countdown during a rocket launch? 2013-08-16T15:12:39.810

98 How did NASA achieve their live TV broadcast in 1969? 2013-12-02T14:19:36.400

94 Is this "Attach Orbiter Here / Note: Black Side Down" sign on the Shuttle Carrier Aircraft real? 2017-09-13T23:59:17.450

92 Who was the first human to sleep - perchance to dream - on the Moon? 2019-11-13T18:13:00.790

87 How did Apollo 16 capture this full photograph of the Moon's far side? 2016-07-08T14:11:24.637

85 Why destroy Juno at the end of the mission? 2016-07-05T04:20:52.107

83 Could an Apollo astronaut stand up if they fell on the moon? 2018-10-23T15:57:21.693

78 What can the KSP game actually teach about spaceflight and orbital mechanics, and what are its limitations? 2017-08-30T03:57:50.943

78 Why do most space probes survive for far longer than they were designed for? 2019-02-15T00:31:56.657

77 Could "peak Apollo levels" of support have gotten NASA astronauts to Mars in the 1980's? 2018-06-20T04:06:31.790

76 How do astronauts on EVA deal with nose itching? 2015-12-10T09:19:01.107

76 Is the SpaceX Falcon Heavy payload (a Tesla car) space junk? 2018-02-07T12:33:48.697

73 A starship is travelling at 0.9c and collides with a small rock. Will it leave a clean hole through, or will more happen? 2019-02-25T13:23:47.440

71 How much bigger could Earth be, before rockets would't work? 2016-03-09T07:45:39.930

71 Why is the American space program launch site based in Florida and not Texas? 2016-12-08T18:26:32.307

70 Was the NOAA-N Prime satellite really dropped on the floor? 2013-09-05T13:45:46.993

70 Why does the ISS have to be destroyed? 2018-01-10T14:04:42.920

69 Why did some Apollo missions carry a grenade launcher? 2019-07-29T14:58:35.307

68 What will be the effect if we stand on Jupiter? 2014-07-23T04:20:37.560

68 Difference between BlueOrigin and SpaceX rocket landings? 2015-12-22T02:10:57.320

67 Why is SpaceX considering Methane as fuel for their next engine, the Raptor? 2013-12-18T14:24:13.393

66 How far could we send someone before they get a lethal dose of radiation? 2013-07-16T20:51:47.093

66 When will New Horizons overtake Voyager 1 in distance from the Sun? 2014-01-28T11:18:00.123

65 What happens to the Falcon 9 second stage after payload separation? 2015-01-14T19:31:08.967

65 Why is using a space elevator cheaper than rocket power? 2018-09-05T16:36:03.723

63 Why do ISS crew members often cross their arms? 2017-06-02T09:33:30.380

63 How did people know how to build the first space ship? 2017-08-09T18:33:47.233

63 Which country borders are visible from space? 2019-01-12T16:18:42.917

62 Is there no physical security in space, other than being in space? 2013-10-11T21:40:56.573

62 What was Apollo 13's "Little Jolt" after MECO? 2019-04-23T11:26:09.307

62 Did Feynman cite a fallacy about only circles having the same width in all directions as a reason for the Challenger disaster? 2019-10-02T12:13:37.673

61 Is a Moon-base inherently more dangerous than a Space Station? 2014-05-29T22:59:24.590

61 Can I drive Elon Musk's Tesla after it's been in space for 100 Years? 2018-01-09T11:23:13.843

60 Why would SpaceX not use parachutes for the final descent of the first stage? 2015-01-09T11:12:08.700

60 Why did the Apollo 13 crew extend the LM landing gear? 2019-05-02T01:56:23.013

59 Washing clothes in space: are there any technical challenges? 2013-07-23T09:26:43.720

59 Can gunpowder get you to the moon? 2013-07-29T15:08:19.763

59 Why does the SpaceX reusable launcher use vertical rather than horizontal landing? 2015-01-27T08:17:02.987

59 Which Apollo "mystery" was said to be finally solved by a better rendering engine? 2017-02-13T07:18:01.313

59 Could we breathe an atmosphere that is not nitrogen based? 2018-07-06T14:53:23.417

59 Has alcohol ever been consumed in space? 2018-12-16T04:06:26.243

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