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Top Questions
51
votes
What impact will the deorbiting of thousands of satellites have on the atmosphere?
reentry
atmosphere
starlink
satellite-constellation
deorbit
asked Sep 1, 2020 at 9:04
space.stackexchange.com
35
votes
How was the mass of Venus determined?
observational-astronomy
history
mass
venus
asked Sep 27, 2020 at 14:10
astronomy.stackexchange.com
32
votes
What are the teeth on the edge of Venera 13 and 14?
probe
venus
soviet-union
venera
asked Jul 8, 2020 at 8:25
space.stackexchange.com
32
votes
Is oxygen really the most abundant element on the surface of the Moon?
the-moon
surface
elemental-abundances
asked Feb 11, 2021 at 10:54
astronomy.stackexchange.com
29
votes
How far apart are stars in a binary system?
binary-star
asked Dec 4, 2019 at 12:53
astronomy.stackexchange.com
29
votes
How is it possible that we haven't discovered anything in the Oort cloud yet?
observational-astronomy
oort-cloud
occultation
asked Sep 23, 2020 at 13:12
astronomy.stackexchange.com
29
votes
How is Uranus' north pole defined?
rotation
uranus
asked Apr 1, 2020 at 9:46
astronomy.stackexchange.com
27
votes
Why don't the inner moons of Jupiter have tidally-induced volcanism?
jupiter
natural-satellites
tidal-forces
io
asked Jul 20, 2020 at 10:53
astronomy.stackexchange.com
27
votes
Why were the Apollo 12 astronauts tasked with bringing back part of the Surveyor 3 probe?
apollo-12
surveyor-3
asked Oct 11, 2021 at 8:13
space.stackexchange.com
26
votes
Why can't hydrogen and helium fuse?
nuclear-physics
stars
hydrogen
fusion
binding-energy
asked Aug 24, 2021 at 9:25
physics.stackexchange.com
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Top Answers
41
What is this web on the surface of the Sun?
astronomy.stackexchange.com
37
Shouldn't this cause a fire?
astronomy.stackexchange.com
30
Is Jupiter still an anomaly?
astronomy.stackexchange.com
24
Why is it so acceptable for software engineers to job hop? I'm tired of constantly recruiting them
workplace.stackexchange.com
23
How can the same runway have two different gradients?
aviation.stackexchange.com
23
Do scientist who study martian geology typically use the term areology?
space.stackexchange.com
23
How did Astronomers deduce that the Sun was not a ball of fire?
astronomy.stackexchange.com
18
Why doesn’t the Sun fill the sky on Mercury?
astronomy.stackexchange.com
17
How often do runways need to have typical maintenance?
aviation.stackexchange.com
16
How long do the phases of sunset take?
astronomy.stackexchange.com
16
Why can't we see a solar eclipse every month?
astronomy.stackexchange.com
15
Why aren't cell phones allowed to be used in aircraft?
aviation.stackexchange.com
15
How often are there lunar eclipses on Jupiter
astronomy.stackexchange.com
15
Should I tell applicants they have not been selected for a position, if the application process was long ago?
workplace.stackexchange.com
13
How many miles before the runway should an airliner put the gear down?
aviation.stackexchange.com
13
How many satellites orbit their planet faster than the planet rotates?
astronomy.stackexchange.com
11
Determining the extinction by counting stars?
astronomy.stackexchange.com
11
Why are Mars northern/southern hemisphere altitudes so different?
astronomy.stackexchange.com
10
Why is AVGAS so much more expensive than car gas?
aviation.stackexchange.com
10
What does the Sun look like from Eris at its aphelion?
astronomy.stackexchange.com
9
How to get only one vertically centered equation number in align environment with two equations
tex.stackexchange.com
9
How will Starlink affect observational astronomy?
astronomy.stackexchange.com
9
Do gas giants have a core?
astronomy.stackexchange.com
8
How to know if an airport has PAPI lights?
aviation.stackexchange.com
8
Why we can't see our Sun as it was a few years ago?
astronomy.stackexchange.com
7
Any book on `How do they know it (in Astronomy)`?
astronomy.stackexchange.com
6
How does the nose wheel lock on the Robin DR400 work?
aviation.stackexchange.com
6
Can a drone travel beyond the range of its remote control signal?
aviation.stackexchange.com
6
Can I get a discount on my flight for not being overweight?
travel.stackexchange.com
6
Is it normal to not be able to work 8 hours a day?
workplace.stackexchange.com
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