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Space Exploration

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 Student
First question with score of 1 or more.
Awarded 5590 times.
Was the appollo 11 mission completely done all still in earths orbit?
Awarded 14 hours ago
Why is my apoapsis/periapsis prediction obtained by sgp4 so inaccurate?
Awarded 14 hours ago
TEME to GCRF Test Cases
Awarded yesterday
While monitoring Kosmos 482 tracking, I notice that the altitude fluctuates (climbs and falls). How is it possible for it to climb in altitude?
Awarded yesterday
Calculate gravity assist for departure and arrival
Awarded 2 days ago
(post deleted or otherwise unavailable)
Awarded Apr 27 at 12:40
GMAT - Simulating realtime ground track
Awarded Apr 18 at 12:23
Would a hybrid engine with fuel-side full-flow staged combustion and a gas generator for the oxidizer pump be feasible in a hydrolox engine?
Awarded Apr 14 at 13:25
How to estimate the orbital height from the time it takes a satellite to cross the sky?
Awarded Apr 12 at 22:53
Creating a coverage analysis map in GMAT
Awarded Apr 8 at 13:02
Should secondary flight computers run a RTOS, or use middleware?
Awarded Apr 7 at 1:56
(post deleted or otherwise unavailable)
Awarded Mar 31 at 22:23
Is there a formula for the maximum GPS Doppler that can be observed on Earth?
Awarded Mar 29 at 5:34
Astronauts on the Moon or Mars, and the potential for lunar silica dust in lungs; health issues or concerns, and mitigation plans?
Awarded Mar 28 at 16:37
Does an exact gravity assist equation exist? Where to at least find the "advanced" approximate form?
Awarded Mar 26 at 9:51
Relation between mass and required fuel
Awarded Mar 25 at 21:12
How (in)efficient would a rocket be that flew to orbital heights, hovered for a while, and then fell back down instead of going into orbit and back?
Awarded Mar 24 at 5:11
Angle problem between solar system orbital using keplerian orbital elements in python
Awarded Mar 22 at 18:37
How do I make thrust dependent on the altitude of a spacecraft in GMAT?
Awarded Mar 21 at 6:53
Is there any raw video footage of the N1 rocket online?
Awarded Mar 19 at 13:33
Why does it take so long to 'deplane' the Dragon capsule when it's back on earth?
Awarded Mar 19 at 7:10
Different astrodynamics propagation errors depending on starting point; why?
Awarded Mar 13 at 23:35
Can the gyroscopic effect be used for landing?
Awarded Mar 11 at 22:51
Is it possible to use a solar sail in low Earth orbit, thanks to a good orientation of the sail?
Awarded Mar 8 at 12:13
SPICE can't find path with meta kernel
Awarded Mar 5 at 12:40
Using Modern Technology How Do We Slow Down and Capture 2024 YR4?
Awarded Feb 25 at 14:07
Uncrewed Lunar Probe Transit Times.....Space Age Era vs Contemporary
Awarded Feb 24 at 22:48
Would someone in orbit require eye protection to look at Venus? What about the upper atmosphere?
Awarded Feb 24 at 1:51
Why is cross-track direction uncertainty fluctuating wildly?
Awarded Feb 22 at 15:43
Star like object in sky over Maracaibo, Venezuela at 12:10 PM 2/16/2025
Awarded Feb 21 at 4:50
(post deleted or otherwise unavailable)
Awarded Feb 20 at 6:51
Is there any heritage with wire-retraction systems for space-applications?
Awarded Feb 16 at 3:48
How is the Soyuz's movement along the axes ensured using maneuvering engines?
Awarded Feb 12 at 20:48
(post deleted or otherwise unavailable)
Awarded Feb 12 at 20:27
CubeSat subsystem physical integration: alternatives to PC104 for third-party hardware
Awarded Feb 11 at 4:03
How would a spacecraft figure out its own orbit, without help from earth?
Awarded Feb 2 at 22:57
What could the flight surgeon do if something actually happened during EVA?
Awarded Jan 31 at 20:12
Voyager 1: new spacemark or not?
Awarded Jan 30 at 22:25
Calculating the ideal characteristic velocity for hydrazine and nitrogen tetroxide
Awarded Jan 26 at 1:32
What are the use cases and challenges for a cubesat that would take pictures of other satellites?
Awarded Jan 22 at 2:02
How did spacecraft work before computer [closed]
Awarded Jan 21 at 17:50
Calculation of Vacuum Specific Impulse
Awarded Jan 17 at 21:43
How rigorous would sterilization have to be for a Europa Lander?
Awarded Jan 17 at 5:50
What is the Parker Solar Probe’s speed measured relative to?
Awarded Jan 16 at 15:46
Disappearance of Tranquility Base
Awarded Jan 11 at 23:21
What is the difference between BCRS and ICRS?
Awarded Jan 11 at 15:36
Can ISS astronauts collect space debris?
Awarded Jan 8 at 23:34
Using GMAT to determine slant range to a ground station
Awarded Jan 7 at 9:55
Use of the XTCE standard for satellite telemetry and commands
Awarded Jan 6 at 19:06
Did I really see that much detail on the ISS, or something else?
Awarded Jan 6 at 15:50
Growing plants on Mars to increase the oxygen level
Awarded Jan 6 at 12:52
Could space tourism ever offer total solar eclipse viewings by traveling near the tip of the Moon's umbra as it's projected into space near Earth?
Awarded Dec 31, 2024 at 21:03
What are the approximate dimensions of the liquid oxygen tank and liquid methane tank on the Starship?
Awarded Dec 30, 2024 at 5:11
Lunar Ascent Module - Center of Thrust
Awarded Dec 29, 2024 at 22:09
Why the Sun is reflected by rivers and lakes in video of NASA ISS live, but not from sea or oceans?
Awarded Dec 26, 2024 at 21:25
Why are the layers of the James Webb Telescope’s sunshield so thin?
Awarded Dec 25, 2024 at 21:53
What is this color difference on Composite Booms observed in the deployment of iROSA?
Awarded Dec 25, 2024 at 6:43
Modeling magnetometer for attitude estimation
Awarded Dec 24, 2024 at 23:06
(post deleted or otherwise unavailable)
Awarded Dec 24, 2024 at 21:55
What is the difference between interstellar space & intergalactic space?
Awarded Dec 24, 2024 at 21:55
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