Space Exploration

Revival

 Revival
Answer more than 30 days after a question was asked as first answer scoring 2 or more. This badge can be awarded multiple times.
Awarded 1283 times.
Does the FAA still license the people who fold human-rated reentry parachutes?
Awarded Feb 2, 2021 at 15:41
Are there any superstitions practiced in space?
Awarded Feb 2, 2021 at 1:16
How does methane waste produced by the ISS interact with our Atmosphere?
Awarded Jan 31, 2021 at 2:41
How does a third DSN station serves as a “relay” to tie-together observations by two other stations doing VLBI?
Awarded Jan 31, 2021 at 1:27
How deep into the corona could the Parker Solar Probe go without being damaged?
Awarded Jan 30, 2021 at 17:04
Station-keeping delta-v per year for an Earth-Moon vanilla halo orbit?
Awarded Jan 29, 2021 at 21:05
How are the Voyagers' thrusters configured in a novel way to minimize accelerations along Earth-spacecraft axis?
Awarded Jan 29, 2021 at 4:51
Why would photon pressure be needed to keep ParkinsonSAT Spinning?
Awarded Jan 23, 2021 at 0:25
Did the Space Shuttle crew have to worry about the ionosphere? What relevant training or specific briefings did they receive?
Awarded Jan 19, 2021 at 20:11
New Terran 1 rocket - launch costs for Cubesat
Awarded Jan 18, 2021 at 18:34
How much of the piggybacked Aireon system rely on its Iridium Next hosts?
Awarded Jan 16, 2021 at 11:25
How many SpaceX 2nd stages are in heliocentric orbits?
Awarded Jan 14, 2021 at 4:32
Implementing control system to track position and velocity references simultaneously
Awarded Jan 13, 2021 at 7:02
Patched conics Earth to Mars transfer, find Vinf at arrival at Mars
Awarded Jan 11, 2021 at 23:32
Why does NASA now call its rovers "robotic scientists?"
Awarded Jan 11, 2021 at 20:26
Are black and white stripes any better than uniform gray for thermal control?
Awarded Jan 8, 2021 at 1:57
How are the Curiosity rover's batteries doing after all these years (and all these cycles)? Have they degraded significantly?
Awarded Jan 2, 2021 at 12:52
What upgrades does the Merlin 1D need to increase its time between overhauls to 1000 hours?
Awarded Jan 1, 2021 at 1:41
Cubesat Launch Costs
Awarded Dec 31, 2020 at 20:18
How many leaks have been fixed on the ISS, roughly?
Awarded Dec 22, 2020 at 15:43
What "improvements in technology" allowed the primary mirror of RST (WFIRST) to be less than 1/4 the weight of Hubble's?
Awarded Dec 19, 2020 at 6:11
Are LiPo batteries more suitable for 1st stage electric power than Li-ion batteries?
Awarded Dec 19, 2020 at 2:36
Why did GRACE mission have launch window?
Awarded Dec 18, 2020 at 16:08
What is the difference between a "Suicide burn" and a "Hoverslam"?
Awarded Dec 15, 2020 at 8:26
What is the optimal angle for a solar-sail deorbit towards the Sun when radial thrust is included?
Awarded Dec 13, 2020 at 1:50
Solar sail force calculation: Angle vector
Awarded Dec 11, 2020 at 11:26
Are there useful materials which can only be manufactured in microgravity?
Awarded Dec 8, 2020 at 9:11
Is there a way to get the angle of approach of a spacecraft with respect to a planet velocity vector?
Awarded Dec 7, 2020 at 13:30
How will the Lunar Gateway go to L2 and L1; how much delta-v is needed?
Awarded Dec 6, 2020 at 23:27
Did any rockets have 5- or 7-fold symmetry?
Awarded Dec 5, 2020 at 22:26
Have there been any designs for multi staged space tethers?
Awarded Nov 29, 2020 at 9:51
How many spacesuits were specifically manufactured for John Young?
Awarded Nov 27, 2020 at 1:37
How does a butterfly orbit move in 3D? Way to generate or visualize?
Awarded Nov 26, 2020 at 22:51
What caused STS-129's low energy condition on the HAC?
Awarded Nov 18, 2020 at 23:25
what brand/make is the laptop articulated arm in sleeping pod?
Awarded Nov 15, 2020 at 9:04
Why will the Soyuz MS-17 be relocated on the ISS?
Awarded Nov 15, 2020 at 4:56
How far did Hayabusa-2 back off before the "bomb" went off?
Awarded Nov 14, 2020 at 15:19
Where on Mars are there other craters or collapse features with very high depth/diameter ratio?
Awarded Nov 5, 2020 at 7:25
Most busy times in space launches by decade?
Awarded Nov 2, 2020 at 16:46
How do the Dynetics-led team's ALPACA lander's "drop tanks" rendezvous and jettison work in terms of trajectories?
Awarded Nov 1, 2020 at 7:46
Have there been any square 4U (2x2) cubesats?
Awarded Oct 30, 2020 at 0:10
Why does it take three years to manufacture a Soyuz spacecraft?
Awarded Oct 26, 2020 at 19:02
Would not getting asteroid 2013 ND$_1$$_5$ into a polar orbit be the easiest way for it to become a moon of Venus?
Awarded Oct 21, 2020 at 22:55
Venus-Mars-Venus cycler?
Awarded Oct 20, 2020 at 14:57
What are the advantages of solid iodine propellant and how is it used for ion propulsion?
Awarded Oct 20, 2020 at 14:57
Dried beans, rice and oats, jerky, olive oil, salt, vitamins, electrolytes, water; anything else?
Awarded Oct 17, 2020 at 15:32
What is the typical size of the sulfuric acid droplets in the atmosphere of Venus?
Awarded Oct 10, 2020 at 14:27
When were the presence of specific elements on asteroids first identified?
Awarded Oct 10, 2020 at 12:07
Trivial lower bounds for single point mass delta-v problems?
Awarded Oct 5, 2020 at 15:41
What would be the implications of high-altitude or catapult launch for orbital rocket?
Awarded Oct 3, 2020 at 20:47
How were scientists able to experimentally confirm that Saturn's ravioli-shaped moons had highly porous surfaces?
Awarded Oct 3, 2020 at 8:28
Which solar system objects could a space elevator be built on with modern tech?
Awarded Oct 2, 2020 at 20:18
Could any modern launch vehicle have put Ulysses in it's polar heliocentric without going to another planet first?
Awarded Oct 2, 2020 at 16:26
Was Jules Verne the first to propose the retro-rocket concept?
Awarded Oct 1, 2020 at 22:41
Are there methods of lightning detection on Mars?
Awarded Sep 30, 2020 at 20:18
Delay-Doppler maps in space science
Awarded Sep 23, 2020 at 17:36
Has ChemCam been used to characterize the martian atmosphere?
Awarded Sep 17, 2020 at 12:09
Why are balloon tanks used by so few rocket designs?
Awarded Sep 14, 2020 at 20:26
What is the physical interpretation of the eigenvalues of the monodromy matrix and how are they associated with the invariant manifolds?
Awarded Sep 14, 2020 at 1:27
What criteria was used to select potential landing sites for Hayabusa-2's rovers on Ryugu?
Awarded Sep 11, 2020 at 15:55
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