Space Exploration

Popular Question

 Popular Question
Question with 1,000 views. This badge can be awarded multiple times.
Awarded 5006 times.
How will the Lunar Gateway go to L2 and L1; how much delta-v is needed?
Awarded 47 mins ago
Are software updates to satellites or in general space craft commonplace during scientific missions?
Awarded 7 hours ago
Is this commonly attributed ECI (Earth-Centered Inertial) to ECEF (Earth-Centered Earth-Fixed) transformation accurate?
Awarded 18 hours ago
Which type of Power Plug do we use on the ISS?
Awarded yesterday
How to find T₀ and other parameters from a TLE to calculate an approximate mean anomaly?
Awarded 2 days ago
Why is it assumed that space flights have to be safe? [closed]
Awarded 2 days ago
Would a balloon pop if dropped from space?
Awarded Jul 2 at 19:15
What kind of "safe" was carried on the Space Shuttles?
Awarded Jul 1 at 15:40
Is the propulsion for the Scorpion nuclear-thermal-electric ship concept viable and credible?
Awarded Jun 30 at 15:57
Is it possible for an Orion drive-based spaceship to experience smooth artificial gravity?
Awarded Jun 30 at 11:18
Delay-Doppler maps in space science
Awarded Jun 29 at 11:08
What's the typical temperature of a reactor core in a nuclear thermal rocket?
Awarded Jun 29 at 7:53
Why does the Falcon 9 first stage continue to decelerate after its reentry engine burnout?
Awarded Jun 28 at 1:27
How long can the SpaceX Starlink satellites survive before they deorbit?
Awarded Jun 27 at 14:05
Would it be possible to Boost ISS to L1 or Lunar Orbit?
Awarded Jun 26 at 14:42
Why did NASA intentionally crash-land the Curiosity and Perseverance sky cranes on Mars?
Awarded Jun 24 at 11:25
No need for gravity assist with Falcon Heavy?
Awarded Jun 24 at 2:33
What is the meaning of the ROSCOSMOS logo?
Awarded Jun 24 at 1:56
Is there documented Space Shuttle O-ring failures excluding STS-51-L?
Awarded Jun 22 at 4:16
Why Ingenuity drone has 2 coaxial rotors, not quad-rotor
Awarded Jun 21 at 16:33
Is there something inherently more difficult about servicing satellites in the 2nd Sun-Earth Lagrangian point?
Awarded Jun 21 at 10:55
Could the Apollo Lunar Module be flown to a landing without the LEM Guidance Computer?
Awarded Jun 20 at 15:08
ISS Speed required for true geosynchronous orbit
Awarded Jun 17 at 18:18
Why are the ISS attitude values shown on these two web sites so different?
Awarded Jun 17 at 15:55
Blimp on Earth, but a glider on Mars?
Awarded Jun 17 at 15:07
Do we sufficiently understand mechanics of Lagrange point stationkeeping for EML2 rendezvous and assembly?
Awarded Jun 17 at 11:04
How would one calculate the Lunar liftoff thrust required for a spacecraft?
Awarded Jun 17 at 3:27
How does a gas generator engine begin ignition?
Awarded Jun 17 at 3:08
Why did NASA's Soujourner Mars rover die at the same time as Pathfinder?
Awarded Jun 16 at 16:47
What are the advantages and disadvantages of using either liquid hydrogen or liquid methane based rocket fuels?
Awarded Jun 16 at 12:27
Post processing of destruction of a rocket
Awarded Jun 16 at 5:35
Physical meaning of perigee advance
Awarded Jun 14 at 14:01
Radial variation of atmospheric pressure in rotating O'Neill cylinder-like ship? (Rendezvous with Rama)
Awarded Jun 13 at 22:51
Injection versus insertion
Awarded Jun 13 at 3:40
Capsule heat shielding made of Aerogel?
Awarded Jun 12 at 4:17
How did SpaceX resolve their Alcoa issue?
Awarded Jun 11 at 13:21
How is satellite's footprint/coverage calculated?
Awarded Jun 10 at 14:49
Other than He and N as pressurizing gases
Awarded Jun 8 at 14:52
Puzzler: Precisely what maximum distance from the Earth did the Apollo 13 astronauts achieve?
Awarded Jun 6 at 20:50
What is measured with g-forces?
Awarded Jun 6 at 14:36
When staying indoors, can missing gravity be replaced with blowing air?
Awarded Jun 5 at 10:48
Does a rocket sound louder to the astronauts as it leaves the atmosphere?
Awarded Jun 4 at 0:36
What tensile strength would be needed for a lunar space elevator?
Awarded Jun 4 at 0:18
How were the Space Shuttle missions named?
Awarded Jun 3 at 19:15
What is the difference between a space plane and a space shuttle?
Awarded Jun 2 at 15:49
Could a spacecraft theoretically fly a smooth, curved arc of a turn in space like an aircraft?
Awarded May 31 at 22:16
When and why did three-axis stabilization become prominent in geostationary satellites?
Awarded May 31 at 16:07
Xenon vs Hydrazine, "Should I Stay or Should I go?" Dawn mission decisions
Awarded May 30 at 20:47
Does chamber pressure have the same impact on ISP for different types of engines?
Awarded May 30 at 11:30
Are the computers on Pioneer 10 & 11 still running?
Awarded May 30 at 10:03
Sources of Xenon or other noble gases in space?
Awarded May 28 at 18:16
How fast do they spin astronauts these days? Maximum routine g-training for astronauts in the 21st century?
Awarded May 28 at 1:35
Why wasn't robotic arm used to free Spirit rover from sand trap? (and other things...)
Awarded May 27 at 14:16
Gravitational field of the Moon and Earth
Awarded May 27 at 6:02
How to dock space-craft to the ISS?
Awarded May 27 at 5:48
Why is the Merlin 1D Vacuum nozzle bigger than the Merlin 1D nozzle?
Awarded May 27 at 2:19
Why make Ingenuity survive some "brutally cold Martian nights" before its first attempt at flight?
Awarded May 25 at 11:56
Could Ingenuity survive if Perseverance failed?
Awarded May 24 at 17:55
What is "aerospace grade"?
Awarded May 24 at 11:43
Why was the Atlas V's SRB kept attached for 1 minute after burnout in the OFT-2 mission?
Awarded May 24 at 10:43
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