Space Exploration Beta

Popular Question

 Popular Question
Question with 1,000 views. This badge can be awarded multiple times.
Awarded 3588 times.
Which parts of a spacecraft are joined by adhesives?
Awarded yesterday
Can the vacuum of space be used to sterilize equipment?
Awarded yesterday
Did Streptococcus mitis survive 950 days in the lunar environment?
Awarded yesterday
Why does Atlas V have so many different types of payload fairings?
Awarded yesterday
How do astronauts deal with micrometeorites during EVA?
Awarded 2 days ago
What sounds do astronauts hear inside their helmets during an EVA?
Awarded 2 days ago
Why do many RTGs have finned heatsinks, when this is considered bad for radiation heat transfer?
Awarded 2 days ago
Why didn't the space shuttle use non-foam-shedding external tanks?
Awarded 2 days ago
How much Delta-V would be required to escape the Gravitational Influence of the Earth without entering orbit?
Awarded 2 days ago
What percentage of overall fuel does a rocket burn up to get to max-q?
Awarded 2 days ago
Challenger hypothetical - what if the SRB breach faced outboard?
Awarded May 23 at 5:41
Is there any way that real stars would move like they do in the classic Windows 3.x screensaver if traveling through space at extreme speed?
Awarded May 22 at 21:21
With current state of technology if we wanted how long would it take for newly launched probe to overtake Voyagers?
Awarded May 22 at 7:21
How does time work on other planets?
Awarded May 21 at 22:25
Would a GPS receiver with an onboard atomic clock only need 3 satellites to determine position?
Awarded May 21 at 18:57
Finned heatsinks in space
Awarded May 20 at 12:55
Could Mars Rovers be lighter or faster if they didn't have to be tested on Earth?
Awarded May 20 at 9:38
Does NASA have any plans for future Mars rovers after Curiosity?
Awarded May 20 at 8:27
How much is a geostationary satellite expected to deviate from the geostationary orbit?
Awarded May 19 at 15:57
How does “space weather” cause reaction wheel failure?
Awarded May 18 at 15:41
Why are there mountains/mounds in the centre of craters on the lunar surface?
Awarded May 18 at 13:42
Cubesat 6U and 12U maximum weight
Awarded May 18 at 13:17
Why did Apollo 11 land at the sea of tranquility?
Awarded May 18 at 13:11
Why would sub-cooled LOX tanks need to “topped-off” until the last minute or so?
Awarded May 18 at 4:27
Could any life from Earth survive in Enceladus' oceans?
Awarded May 17 at 21:07
What does “clearing of C-band spectrum” mean and why will it cost Intelsat a billion dollars?
Awarded May 16 at 19:52
What would it look like to shatter a glass or break similar material in Zero Gravity?
Awarded May 16 at 3:57
Did any of the Space Shuttle RCS covers ever stay on?
Awarded May 15 at 7:08
Odor of a rocket launch?
Awarded May 14 at 22:47
Which side of the Moon faces Earth, the heavy side or the lighter side?
Awarded May 14 at 18:56
Does any first-person video of a rocket launch exist?
Awarded May 14 at 13:42
Have any satellites been lost or damaged on their way to the launch site (ground/sea transport)?
Awarded May 14 at 3:27
Will reusable rockets be financially viable?
Awarded May 13 at 23:05
Could Dick Scobee have flown a RTLS on Challenger 51L
Awarded May 13 at 19:39
Why aren't energy and momentum (of a restricted three-body system) conserved, or are they?
Awarded May 13 at 14:06
How many spacecraft can dock at the ISS at once?
Awarded May 12 at 15:51
Best practices for rocket ascent trajectory guidance
Awarded May 11 at 0:05
Are heat shields just as necessary on launch as re-entry?
Awarded May 10 at 1:03
Lunar Polar Orbit
Awarded May 9 at 9:35
High altitude stage separation
Awarded May 8 at 13:33
Why were two different California airbases (Vandenberg and Edwards) intended for Shuttle launches versus landings?
Awarded May 8 at 3:48
Cubesat with 8 arcsecond pointing accuracy - is that typical, or exceptional?
Awarded May 8 at 1:17
Do you need 0 km/s velocity to crash into the sun?
Awarded May 6 at 10:11
How does desaturation of the reaction wheels work?
Awarded May 5 at 13:25
Encryption in radio system
Awarded May 5 at 11:51
How does a planet's gravity push away smaller bodies that would otherwise intersect its orbit?
Awarded May 5 at 7:10
Were the consoles in mission control computers or terminals for displaying information?
Awarded May 4 at 17:10
How did they access the LM to mount the flag package while the Apollo stack was already on the launch pad?
Awarded May 4 at 9:48
How much radiation are astronauts on the ISS exposed to?
Awarded May 3 at 9:25
Why Proton launcher for ExoMars, and not Ariane?
Awarded May 1 at 19:42
How far did Pan Am go with its plans to have passenger trips to the Moon?
Awarded May 1 at 16:34
What is the farthest distance a failed rocket has landed from its launch site?
Awarded May 1 at 16:20
Why did Voskhod 2 carry two cosmonauts when Voskhod 1 proved it could carry three?
Awarded May 1 at 9:56
If the Earth spun clockwise, how would that affect Space Exploration?
Awarded Apr 30 at 10:35
What is an “exhausterator” and what does it do?
Awarded Apr 28 at 22:20
How does the landing accuracy of Dragon (under parachutes) compare to Soyuz?
Awarded Apr 27 at 9:57
Could moon ice be used to fuel a steam powered jetpack for EVA in space or high altitude exploration on the moon?
Awarded Apr 27 at 4:05
What does determine when a rocket goes from a vertical trajectory to an horizontal one?
Awarded Apr 26 at 23:48
Why do space rockets not start from an angle? Why go straight up? [duplicate]
Awarded Apr 26 at 23:35
What caused the Lunar Landing Training Vehicle to be unreliable?
Awarded Apr 26 at 20:36
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