Space Exploration Beta

Popular Question

 Popular Question
Question with 1,000 views. This badge can be awarded multiple times.

earned this badge 92 times.
Were the Lunokhod Lunar rovers remote controlled in real time?
Awarded Nov 28 '20 at 7:32
What tonnage can current heavy rockets land on the Moon?
Awarded Nov 19 '20 at 8:37
What are good ways to teach a 7 years old kid astronomy (and space flight)?
Awarded Nov 16 '20 at 15:48
Why use a Mars orbital Earth return vehicle for sample return?
Awarded Aug 15 '20 at 14:06
How are phased array antennas used in spaceflight? Benefits and limitations
Awarded Aug 3 '20 at 11:16
How long would a stranded Apollo crew have survived on the Moon?
Awarded Jun 20 '20 at 8:26
How is the space station's interior cleaned?
Awarded Mar 22 '20 at 3:55
Did CRS-6 landing fail because the steering fins are ineffective at low speed?
Awarded Feb 22 '20 at 1:45
Why did the Apollo program become a MULTIPLE human landing program?
Awarded Jan 16 '20 at 14:10
How is the ISS helpful for launching cubesats and minisats?
Awarded Nov 26 '19 at 8:45
Why do KSC crawler-transporters use caterpillar treads instead of rail tracks?
Awarded Oct 23 '19 at 12:50
How could a spacecraft be continuously propelled if it rotates to simulate gravity (by tether)?
Awarded Oct 2 '19 at 15:05
How could an induced magnetosphere be created at Mars for terraforming?
Awarded Sep 30 '19 at 15:45
Could cosmic rays be produced by alien propulsion systems?
Awarded Sep 23 '19 at 3:30
By what methods can cubesats move from LEO to higher orbits?
Awarded Aug 12 '19 at 13:25
Would human “superpowers” in low gravity fade away through reduced muscle mass?
Awarded Aug 11 '19 at 6:40
How can Sun-Jupiter Lagrangian points be used by flyby probes?
Awarded Jul 10 '19 at 7:00
Why aren't space telescopes put in GEO?
Awarded May 24 '19 at 10:00
How much fuel is being consumed by all spacecrafts in orbit?
Awarded May 24 '19 at 1:05
Folding structures in space - What are the potential benefits and problems?
Awarded May 21 '19 at 17:15
Could a spacecraft be made out of wood?
Awarded Apr 21 '19 at 8:40
What is required to make GPS signals available indoors?
Awarded Apr 2 '19 at 15:25
Is the Oberth effect applicable to any speed change, or only to ejection of reaction mass?
Awarded Mar 3 '19 at 1:30
What delta-v is required to move between Phobos and Deimos?
Awarded Jan 30 '19 at 19:15
Could Hubble observe the night side of the Moon?
Awarded Jan 23 '19 at 8:25
How could a fast powerful rover on Mars be powered electrically?
Awarded Jan 6 '19 at 8:55
How well could a satellite hide from Earth detection?
Awarded Dec 9 '18 at 7:20
Dangers of launching a nuclear thermal rocket
Awarded Nov 29 '18 at 23:10
What kinds of radiation hit the ISS?
Awarded Jun 14 '18 at 12:28
Could the space shuttle be permanently left in orbit as a space station?
Awarded Jun 6 '18 at 1:49
What is required to produce rocket quality methane fuel and oxygen from Mars' atmosphere?
Awarded May 23 '18 at 15:31
Are there interstellar Lagrange points?
Awarded May 2 '18 at 1:21
Using large orbital launchers as sounding rockets. What are the opportunities and challenges?
Awarded Apr 22 '18 at 15:05
Could an Apollo crew have been killed by Solar radiation?
Awarded Mar 24 '18 at 2:53
Do the solid rocket boosters of the Shuttle and SLS have a self-destruct system and was it activated during the Challenger disaster?
Awarded Mar 21 '18 at 17:01
Is higher delta-V required to enter polar orbit than equatorial orbit around another planet?
Awarded Feb 23 '18 at 0:54
Why were the Sputniks launched to such high apogee?
Awarded Feb 21 '18 at 16:51
Why won't JWST deploy in LEO where it is potentially serviceable?
Awarded Feb 20 '18 at 11:20
Could a spy satellite in orbit be recommissioned to do astronomy?
Awarded Feb 19 '18 at 4:53
What is simulated payload and why are they used?
Awarded Feb 7 '18 at 10:10
Could the solid boosters of SLS be replaced by reusable Falcon 9 first stages?
Awarded Jan 22 '18 at 2:00
How is “payload to LEO” estimated for a launcher?
Awarded Jan 5 '18 at 20:25
How can aerobraking be used to enter high orbit without landing?
Awarded Oct 27 '17 at 20:38
What are the differences between SLS and Ares V?
Awarded Oct 24 '17 at 6:20
Could there be any use with importing vacuum from space to Earth?
Awarded Oct 1 '17 at 11:29
Is it easier to land on Europa/Io than on Mars? What are the main considerations?
Awarded Jun 9 '17 at 9:21
Is there a mockup of the ISS on the ground?
Awarded Apr 24 '17 at 2:48
What missions could be done with Orion on Falcon Heavy?
Awarded Apr 19 '17 at 14:47
What significance did Pioneer 10 & 11 have?
Awarded Apr 13 '17 at 10:13
How large could launchers become?
Awarded Mar 24 '17 at 5:14
What are these tiny triangular fins on the Soyuz launcher?
Awarded Mar 23 '17 at 23:33
How will the SLS first stage be supplied with engines? Copy manufacturing the RS-25 or replacing it?
Awarded Mar 12 '17 at 3:33
What decides if a launch has to be done instantaneously or during a window?
Awarded Feb 19 '17 at 16:20
What distinguishes a sounding rocket from a suborbital flight?
Awarded Jan 15 '17 at 16:54
How are EVA's in LEO affected by being at the night side of Earth?
Awarded Jan 6 '17 at 15:52
Why didn't Apollo land on the Lunar poles?
Awarded Jan 4 '17 at 14:18
Why weren't Saturn V and the Soviet N-1 Moon rockets made larger in order to simplify Lunar missions?
Awarded Dec 16 '16 at 21:51
Could a smartphone really transmit to satellites in a space based internet system?
Awarded Nov 29 '16 at 16:38
Oberth effect for Earth vehicles
Awarded Nov 22 '16 at 11:59
Why are there such large differences in launcher payloads to higher orbits (GEO, Lunar) compared to LEO?
Awarded Nov 4 '16 at 13:04
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