Space Exploration Beta

Help Center > Badges > Popular Question

 Popular Question
Question with 1,000 views. This badge can be awarded multiple times.
Awarded 3384 times.
For the mathematical relationship between J2 (km^5/s^2) and dimensionless J2 - which one is derived from the other?
Awarded yesterday
How did Canada come to be the robotic arm people?
Awarded yesterday
Is going to Ceres “as easy as going to Mars” like this aerospace engineer says?
Awarded yesterday
How would civilians send snacks to the ISS crew?
Awarded 2 days ago
Has there ever been manned mission plans by any Space Agency to go to a solar system object other than the Moon and Mars?
Awarded 2 days ago
CubeSat Orbit Determination
Awarded 2 days ago
Could New Horizons take a “Pale Blue Dot”-like image this year?
Awarded 2 days ago
Does any country have real plans for a manned mission to Mars?
Awarded 2 days ago
Why so many STS-61's?
Awarded Feb 13 at 17:35
How can the Parker Solar Probe survive passing within 4 million miles of the sun's surface?
Awarded Feb 13 at 17:00
Does Hubble need to dump momentum of its reaction wheels?
Awarded Feb 13 at 13:45
Would all crew leave the ISS if one had a medical emergency?
Awarded Feb 13 at 9:25
What are the effects of body building on heavy planets?
Awarded Feb 13 at 3:00
How long can Crew Dragon stay at ISS?
Awarded Feb 12 at 13:35
Why does the side of the LEM look almost black in this photo? Did that cause problems?
Awarded Feb 11 at 21:05
Does the entirety of the efficiency of an aerospike engine occur in the lower atmosphere, or are the advantages in a vacuum as well?
Awarded Feb 11 at 7:50
What will happen to human body when affected by two opposing G forces?
Awarded Feb 10 at 22:25
Rockoon on steroids
Awarded Feb 10 at 21:00
Does the speed of ISS slow down at the time of a spacewalk or does it become stationary?
Awarded Feb 10 at 9:50
How many 1st stage boosters will SpaceX settle for, for its LEO/GTO fleet?
Awarded Feb 10 at 4:30
Could 'life' exist on other planets without water - as electrical impulses, for example?
Awarded Feb 8 at 16:30
Why is one Starlink satellite not following the adjacent one in this image?
Awarded Feb 7 at 16:05
Was there any risk of the Gemini hatches blowing open?
Awarded Feb 7 at 9:40
Why were the Space Shuttle's main engines placed on the orbiter?
Awarded Feb 6 at 15:40
How to get velocity vector from GPS NMEA data?
Awarded Feb 4 at 15:10
Are fans ever used in un-crewed spacecraft?
Awarded Feb 4 at 15:00
Could a fan be used to prevent overheating on a Venus bound space probe?
Awarded Feb 4 at 12:20
How will several thousand Low Earth Orbit satellites affect the night sky?
Awarded Feb 4 at 12:15
What is meant by 'Organics' when discussing space exploration?
Awarded Feb 3 at 20:45
Why is comet deflection so hard (and how does a fusion rocket help)?
Awarded Feb 2 at 0:40
Cheapest rocket to go to space?
Awarded Feb 1 at 23:00
Why is SpaceX's Raptor's design so simple in comparison to SSME?
Awarded Jan 31 at 9:35
Cubesat Space Protocol and AX.25
Awarded Jan 31 at 6:20
What are the biggest challenges for high altitude rail-gun launch systems?
Awarded Jan 30 at 23:30
What does burnt Aerozine-50/N2O4 smell like?
Awarded Jan 30 at 17:50
What landings beyond Mars and the Moon are scheduled?
Awarded Jan 30 at 17:20
What are the end-of-life options for large classified satellites?
Awarded Jan 30 at 16:20
Could you launch rocks from the Moon to hit Earth?
Awarded Jan 30 at 12:45
Is liquid rocket engine more or less efficient when throttled?
Awarded Jan 30 at 2:30
How are self-destructs implemented in rocketry?
Awarded Jan 30 at 0:50
How did two satellites end up in almost the same orbit except moving in opposite directions?
Awarded Jan 29 at 14:50
Time of flight between two anomalies in a known orbital trajectory
Awarded Jan 29 at 4:20
What is the gravity inside a rotating cylinder?
Awarded Jan 29 at 2:05
What is the story behind specific impulse being expressed in seconds?
Awarded Jan 28 at 18:10
What did the Apollo missions do with old LiOH canisters & the water they produced?
Awarded Jan 27 at 14:15
Why are the nose cones of current spacecraft less pointy?
Awarded Jan 27 at 13:10
Why not land Red Dragon on the Moon?
Awarded Jan 27 at 10:05
How were Frenet frames and Gram–Schmidt orthonormalization used in spacecraft orbit calculations?
Awarded Jan 27 at 2:15
Why are we interested in visiting the giant planets' icy moons?
Awarded Jan 26 at 4:45
Is it possible to calculate Max-Q without having to input an altitude
Awarded Jan 25 at 22:25
How much does it cost to train an astronaut?
Awarded Jan 25 at 2:35
How might SpinLaunch actually spin something fast enough to launch it into orbit?
Awarded Jan 24 at 14:10
Is there any type of mechanical bearing that can be used in the full vacuum of space?
Awarded Jan 24 at 13:15
Is the risk of explosion-induced damage to operational spacecraft in GEO actually reduced substantially by raising Spaceway-1 by 300 km?
Awarded Jan 24 at 0:50
Is there a self-rounding celestial body from which an Olympian could jump into space?
Awarded Jan 23 at 12:15
Non-orbital takeoff and landing?
Awarded Jan 23 at 10:20
Can I use Tsiolkovsky's rocket equation in combination with this equation for a Hohmann transfer to find what mass of propellant is needed?
Awarded Jan 21 at 12:10
NASA cost estimating and Falcon 9
Awarded Jan 20 at 22:15
After Crew Dragon launch abort, was Falcon 9's detonation intentional?
Awarded Jan 20 at 14:55
Why was the SpaceX abort test not initiated by real booster failure?
Awarded Jan 20 at 12:05
1 2 3 4 5 … 57