Stack Exchange

usernumber

top accounts reputation activity bookmarks subscriptions
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

1 2 3 4 5 … 10

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

1 2