Space Exploration Beta

Teacher

 Teacher
Answer a question with score of 1 or more.
Awarded 2721 times.
Concerns/challenges with LOX as a regenerative coolant
Awarded 2 days ago
Did Apollo have braking rockets for soft landing on Earth?
Awarded 2 days ago
Did Apollo have braking rockets for soft landing on Earth?
Awarded Sep 27 at 19:02
First use of an incandescent light in an un-crewed spacecraft?
Awarded Sep 24 at 21:22
Demonstrative examples of NASA “programs that go too long, that cost too much… end up getting cast out later”?
Awarded Sep 23 at 16:50
How can the CYGNSS spacecrafts (actually) measure ocean roughness?
Awarded Sep 23 at 15:42
How many plants would be needed to produce oxygen enough for 20 humans?
Awarded Sep 23 at 2:55
Other than then N-1 (30 engines) has there been a single stage of a rocket with more engines than a Falcon 9?
Awarded Sep 22 at 19:50
Why doesn't NASA send Voyagers anymore?
Awarded Sep 22 at 12:01
(post deleted or otherwise unavailable)
Awarded Sep 20 at 20:36
Briefly, what are the factors to consider when choosing a launch site?
Awarded Sep 18 at 17:47
Highest DC voltage ever intentionally produced in space?
Awarded Sep 18 at 12:11
Quantum technology for starship communications and landing on Mars
Awarded Sep 17 at 22:31
Phosphine, yes — but where are the organic compounds on Venus?
Awarded Sep 17 at 6:12
Quantum technology for starship communications and landing on Mars
Awarded Sep 16 at 19:42
Why are balloon tanks used by so few rocket designs?
Awarded Sep 14 at 19:50
(post deleted or otherwise unavailable)
Awarded Sep 14 at 12:20
What are the most common practical design specifications for antenna in space?
Awarded Sep 9 at 9:56
Map showing which part of geostationary orbit is allocated to which country?
Awarded Sep 8 at 9:32
Do space suit designers exist?
Awarded Sep 8 at 3:18
How does the hopping mechanism of the Minerva II rovers work?
Awarded Sep 5 at 17:20
How much of the energy of a rocket ends up as a noise?
Awarded Sep 5 at 3:03
Where to look for next rocket launches?
Awarded Sep 4 at 1:45
Where to look for next rocket launches?
Awarded Sep 3 at 18:22
Did Sputnik 1 tell us more than “beep”? What science was improved by information gained from its orbiting the Earth?
Awarded Sep 3 at 17:15
Where to look for next rocket launches?
Awarded Sep 2 at 14:20
Where to look for next rocket launches?
Awarded Sep 2 at 11:22
Challenges that missile mail would have to overcome?
Awarded Sep 2 at 2:16
Has any rocket been launched into orbit from a plain flat surface?
Awarded Aug 31 at 7:19
Is the Jacobi constant stationary along a periodic orbit?
Awarded Aug 30 at 19:07
How to calculate position of GPS Satellite with transmitted ephemeris data?
Awarded Aug 26 at 14:25
Why does a satellite with a higher mass fall slower?
Awarded Aug 23 at 7:01
Why doesn't the BFR/Starship have a launch escape system?
Awarded Aug 22 at 16:56
Can you really use Arduino for a small spacecraft?
Awarded Aug 22 at 8:31
Problems receiving Iridium messages during the middle of the 'day' in the far North
Awarded Aug 21 at 7:27
Why isn't SpaceX constructing the Super Heavy launch mount on top of the water?
Awarded Aug 19 at 10:57
Apparent Centering Problem When Using the Perifocal System to Draw Orbital Ellipses
Awarded Aug 19 at 1:20
Would it be easier to put humans on Venus rather than Mars?
Awarded Aug 18 at 20:30
Would it be easier to put humans on Venus rather than Mars?
Awarded Aug 18 at 0:26
What is the formula for the gain factor of a ferromagnetic core for a torquer coil rod?
Awarded Aug 11 at 23:36
Why can't I just use dot product angles to get satellite vision of a point on Earth?
Awarded Aug 11 at 21:18
How many satellites are orbiting the earth?
Awarded Aug 10 at 23:22
What is the highest possible altitude of a sub-orbital flight?
Awarded Aug 9 at 11:41
Highest reaching sounding rocket
Awarded Aug 7 at 15:31
Would a spacecraft landing on Io need a heat shield?
Awarded Aug 6 at 16:06
Why was the Delta Clipper cancelled?
Awarded Aug 6 at 9:25
What was leaking in Starship SN5 before takeoff?
Awarded Aug 6 at 1:16
Solar wind density in LEO
Awarded Aug 5 at 2:25
Why is Elon Musk building the Starship first?
Awarded Aug 5 at 0:13
(post deleted or otherwise unavailable)
Awarded Aug 4 at 16:47
Was the Space Shuttle always crewed?
Awarded Aug 4 at 15:55
Is there a risk that re-entering capsules or other components will hit ships or islands?
Awarded Aug 4 at 0:05
What was the most busy week in space launches?
Awarded Aug 3 at 7:25
Brushing clean a Mars lander's solar panels
Awarded Aug 3 at 7:17
(post deleted or otherwise unavailable)
Awarded Aug 2 at 1:42
If someone built a vacuum tunnel through the atmosphere, could you have an orbit with a sea level perigee?
Awarded Jul 30 at 4:47
If someone built a vacuum tunnel through the atmosphere, could you have an orbit with a sea level perigee?
Awarded Jul 30 at 3:07
Why Mars instead of a space station?
Awarded Jul 28 at 18:01
Could a steam engine work on the moon?
Awarded Jul 27 at 12:56
How is RF spectrum usage coordinated in Mars orbit?
Awarded Jul 27 at 2:40
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