Space Exploration Beta

Popular Question

 Popular Question
Question with 1,000 views. This badge can be awarded multiple times.
Awarded 3943 times.
Accuracy of ECI (J2000) to ECEF (WGS84) for a LEO satellite only accounting for Earth Rotation
Awarded 17 hours ago
Using water as a high density storable hydro-lox propellant
Awarded yesterday
Identify these mission photos
Awarded yesterday
New Shepard air brakes
Awarded yesterday
Are pictures taken from ISS geolocalized?
Awarded 2 days ago
How to model a continous burn and recalculate orbit properties post burn
Awarded 2 days ago
Why are launch escape towers jettisoned early?
Awarded 2 days ago
Does the ISS have a rotational motion in addition to its translational motion?
Awarded Nov 21 at 8:18
What are these thirteen purple grape-like things inside this tank?
Awarded Nov 21 at 1:50
Information on ISS orbit?
Awarded Nov 20 at 23:47
Why isn't stainless steel used for rocket engines?
Awarded Nov 20 at 15:51
How did the Luna spacecraft collect samples of the moon and containerize them for return to Earth?
Awarded Nov 20 at 11:18
Are these experimental stoichiometric NiTi wire mesh wheels made from “memory alloy”? Need to run at certain temperature?
Awarded Nov 20 at 4:09
How to determine an algorithm for Low Earth Orbit propagation, considering perturbation from the moon, sun, etc?
Awarded Nov 20 at 0:36
Is it possible to have a “figure-8” orbit around the Moon and the Earth, and perhaps always face the sun?
Awarded Nov 19 at 23:11
What is “Safe Mode”?
Awarded Nov 19 at 17:26
Why is the SpaceX crew-1 mission more important than the previous one (demo-1)?
Awarded Nov 19 at 14:52
Can a moon orbit its planet faster than its planet rotates?
Awarded Nov 19 at 14:28
Can Astronauts really see firework displays from space?
Awarded Nov 19 at 13:32
What tonnage can current heavy rockets land on the Moon?
Awarded Nov 19 at 8:37
Is it common and good engineering for a pair of cables to be easily plugged into each other's connectors in modern spacecraft, or
Awarded Nov 19 at 0:26
Will there be privacy on the Crew Dragon moon trip?
Awarded Nov 18 at 21:26
Why were the SpaceX Crew-1 astronauts backed up by guards with automatic weapons?
Awarded Nov 18 at 10:17
Calculations Apollo astronauts were trained to do by hand if loss of guidance computer and/or data & coms link to Earth?
Awarded Nov 18 at 2:32
What happens to where umbilical lines are connected when a rocket lifts off?
Awarded Nov 17 at 17:32
What are these shiny wrist plates worn by astronauts in the SpaceX crew capsule
Awarded Nov 17 at 17:07
What are good ways to teach a 7 years old kid astronomy (and space flight)?
Awarded Nov 16 at 15:48
Why is the tip of this Russian ICBM folding/closing during launch?
Awarded Nov 14 at 19:40
What crimes have been committed or attempted in space?
Awarded Nov 12 at 11:17
Who proposed detonating gunpowder on the moon to prove a rocket reached it?
Awarded Nov 11 at 22:05
Just how much rope have different crewed missions been given?
Awarded Nov 11 at 15:42
What's the story behind this Apollo-era image?
Awarded Nov 11 at 14:51
What is this structure at the SpaceX McGregor, TX test site?
Awarded Nov 11 at 5:15
Payload capacity of a rocket
Awarded Nov 10 at 15:41
Could the SRB's have separated successfully at 70 seconds into flight
Awarded Nov 10 at 5:51
Why did the data “go wild” when Ulysses entered Hyakutake's tail?
Awarded Nov 9 at 15:42
Optimal transfer between to identical orbits with different RAAN
Awarded Nov 9 at 2:34
What is the gravitational acceleration of the Sun?
Awarded Nov 8 at 15:05
How are spacecraft engineered to prevent overheating?
Awarded Nov 6 at 18:00
How hard is it to fly through the tail of a comet? Has it been done?
Awarded Nov 6 at 15:34
Terraforming Mars using a combination of aerogel and GM microbes?
Awarded Nov 5 at 14:25
Reliability of explosive bolts and redundant initiators
Awarded Nov 5 at 8:22
Testing of rocket heat shield on Earth
Awarded Nov 4 at 18:37
Land a cubesat on the moon with ion engine
Awarded Nov 4 at 17:42
Why is Electron painted in black?
Awarded Nov 3 at 14:52
Is Falcon 9 repainted before reuse?
Awarded Nov 3 at 14:33
What is a K-bottle?
Awarded Nov 2 at 16:27
Does it make any scientific sense that a comet coming to crush Earth would appear “sideways” from a telescope and on the sky (from Earth)? [closed]
Awarded Nov 2 at 14:27
How are astronaut nametags printed when their family name is first?
Awarded Nov 2 at 13:10
Who does these mesmerizing simulations of the phases of the Moon? And how?
Awarded Nov 2 at 6:36
Why is butane never used in rockets as fuel?
Awarded Nov 1 at 23:46
Would Earth fireworks work on the Moon or on Mars?
Awarded Nov 1 at 14:55
Improvements in Saturn V, LM and CSM after Apollo 10
Awarded Oct 30 at 18:42
Does an astronaut sweat in a space suit?
Awarded Oct 30 at 16:19
What's the specific impulse of a human farts/urination?
Awarded Oct 30 at 8:16
What is the lowest first stage thrust for a launch reaching orbit?
Awarded Oct 29 at 20:08
How hot do rocket engine nozzles get?
Awarded Oct 28 at 16:36
Why it's news that SOFIA found water when it's already been found?
Awarded Oct 28 at 1:15
On large diameter Atlas V fairings, why is the Centaur inside the fairing?
Awarded Oct 27 at 23:04
Which theoretical propulsion system has the highest specific impulse?
Awarded Oct 27 at 9:32
1
2 3 4 5
…
66