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Top Questions
27 votes

Why did Peter the Great name Saint Petersburg, Russia with a foreign styled name?

russia 18th-century names peter-i-russia saint-petersburg asked Mar 16, 2020 at 18:46
history.stackexchange.com

20 votes

Apparent Ring of Craters on the Moon

the-moon crater asked May 26, 2019 at 18:04
astronomy.stackexchange.com

18 votes

Procedure to deal with the death of Apollo astronaut during a lunar mission

apollo-program crewed-spaceflight lunar-landing death asked Jul 18, 2020 at 10:01
space.stackexchange.com

12 votes

What causes the different colours of the salt pits in the Saloum Delta in Senegal

rivers salinity asked Mar 21, 2015 at 5:16
earthscience.stackexchange.com

11 votes

Why is there a bend in the Lomonosov Ridge?

geophysics plate-tectonics arctic ocean-ridge asked Jan 29, 2015 at 10:30
earthscience.stackexchange.com

10 votes

Impact of space junk on Earth based space elevators

debris space-elevator asked Aug 18, 2015 at 1:25
space.stackexchange.com

10 votes

Source of water for the Great Artesian Basin in Australia

hydrology groundwater asked Mar 1, 2015 at 9:53
earthscience.stackexchange.com

9 votes

Did an impact crater influence the formation of uranium deposits in South Australia?

geology geochemistry earth-history uranium asked Mar 25, 2015 at 14:10
earthscience.stackexchange.com

9 votes

Did Britain send convicts to Canada during the colonial era?

british-empire united-kingdom colonization crime canada asked Jul 6, 2015 at 5:02
history.stackexchange.com

8 votes

Proposed Christmas Island launch site, 1952 von Braun Luna Study

launch-site lunar-landing wernher-von-braun asked Apr 21 at 5:52
space.stackexchange.com

1 2 3

Top Answers
156
If the astronauts on Apollo 11 had landed safely on the moon but could not take off, would there have been a rescue mission?
space.stackexchange.com

72
Why did Roosevelt and Churchill use voice-based telecommunication, instead of simpler text-based options which were easier to encrypt?
history.stackexchange.com

69
How (the heck) did Lunokhod 2 drive, navigate and survive a ~40 kilometer drive over four months on the Moon using 1970's technology?
space.stackexchange.com

47
Why does reboot and poweroff require root privileges?
unix.stackexchange.com

44
How does global-warming-triggered ice melting cause global sea levels to rise?
earthscience.stackexchange.com

40
Why weren't pickled fruits and vegetables part of (European) rations during the Age of Sail?
history.stackexchange.com

37
Why doesn't the sun reach its highest point overhead at exactly 12:00 noon?
earthscience.stackexchange.com

36
How would a person with food allergies cope in the Middle Ages?
worldbuilding.stackexchange.com

34
What is the purpose of these diversions in a natural gas line?
engineering.stackexchange.com

34
Why does the Channel Tunnel enter the ground around 10 km from the coast?
engineering.stackexchange.com

29
What's causing this high SO2 concentrations in Kazakhstan?
earthscience.stackexchange.com

29
Cartoon-like characters on the side of the Tianwen-1 Mars lander?
space.stackexchange.com

26
Rock arches on the moon?
space.stackexchange.com

25
Are metals and other elements in every continent?
earthscience.stackexchange.com

25
Is it possible for rivers to freeze completely and stop flowing?
earthscience.stackexchange.com

25
Is there still a hole in the ozone layer?
earthscience.stackexchange.com

21
How are hillsides farmed?
earthscience.stackexchange.com

21
Why was the initial theory of plate tectonics so controversial?
earthscience.stackexchange.com

21
Why doesn't Roscosmos launch Soyuz spacecraft with only Russians on board?
space.stackexchange.com

20
Why do earth cuts sometimes have steps on their walls
engineering.stackexchange.com

19
Could you feel the wind on Mars?
space.stackexchange.com

19
Do dams reduce the flow of river downstream?
earthscience.stackexchange.com

19
Geothermal instead of fossil and nuclear?
earthscience.stackexchange.com

19
While desalinating ocean water, would it be bad if we didn't pump the brine back into the ocean?
earthscience.stackexchange.com

19
Other than tectonic activity, what can reshape a world's surface?
earthscience.stackexchange.com

19
Would a broken arm/ leg be more painful in zero gravity?
space.stackexchange.com

18
Can I use AutoCAD to learn mechanical engineering by DOING (like programming)?
engineering.stackexchange.com

18
What made bronze the first widely used (non-ornamental) metal in human civilization?
engineering.stackexchange.com

17
How and why do these tree-like river structures form?
earthscience.stackexchange.com

17
Did the third US atomic bomb disappear without a trace?
history.stackexchange.com

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