Space travel to the moon, Mars, and beyond can expose astronauts to extreme conditions, causing potential health issues. To prepare for future long-duration missions, NASA studies how the effects of space—changes in gravity, ...
Space Exploration
Sep 7, 2022
1
118
Space is a hostile, extreme environment. It's only a matter of time before ordinary people are exposed to this environment, either by engaging in space tourism or by joining self-sustaining colonies far away from Earth.
Space Exploration
Sep 7, 2022
0
12
Earthquakes caused by subducting tectonic plates can be highly destructive events. The 2011 Tōhoku earthquake caused immense damage to population centers in eastern Japan.
Earth Sciences
Sep 1, 2022
0
52
Could one of the biggest puzzles in astrophysics be solved by reworking Albert Einstein's theory of gravity? A new study co-authored by NASA scientists says not yet.
Astronomy
Aug 24, 2022
241
529
In Einstein's theory of general relativity, gravity arises when a massive object distorts the fabric of spacetime the way a ball sinks into a piece of stretched cloth. Solving Einstein's equations by using quantities that ...
General Physics
Aug 12, 2022
5
1076
When humans, animals, and machines move throughout the world, they always push against something, whether it's the ground, air, or water. Until recently, physicists believed this to be a constant, following the law of conservation ...
General Physics
Aug 8, 2022
9
1481
Our understanding of the universe may not be expanding as much as the universe itself. In some cases, our theories about cosmic inflation may feel as if they are deflating into a black hole.
General Physics
Jul 20, 2022
0
854
Even as gas prices soar, most people don't destroy their car's engine just to save energy—and that's one luxury certain insects have that those humans don't.
Plants & Animals
Jul 19, 2022
0
432
Living and working in space for extended periods of time presents a number of challenges. These include radiation, as locations beyond Earth's protective magnetosphere are exposed to greater levels of solar and cosmic rays. ...
Space Exploration
Jul 18, 2022
4
70
Among the many functions performed by skeletal muscles, an important one is maintaining our posture. If it weren't for these muscles, Earth's gravitational pull may make it difficult for us to stand and walk around. The group ...
Space Exploration
Jul 18, 2022
0
48
