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Top Questions
9
votes
Could Charon still retain a subsurface ocean?
tidal-forces
pluto
charon
asked Jul 23 at 5:58
astronomy.stackexchange.com
7
votes
Are there any video/audio recordings of the launch of Sputnik 1?
artificial-satellite
history
sputnik
asked Jul 6 at 3:16
space.stackexchange.com
6
votes
How fast does the Parker solar probe move before/at aphelion?
parker-solar-probe
asked Jul 28 at 22:16
space.stackexchange.com
6
votes
Can stable contact binary planets exist
contact-binaries
asked Aug 2 at 5:26
astronomy.stackexchange.com
Top Answers
24
Pluto has smooth ice plains, almost like lunar maria. Where did the heat come from to melt all that ice?
astronomy.stackexchange.com
11
How close would a quasar have to be to be seen with the naked eye?
astronomy.stackexchange.com
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