The research has implications for NASA’s goals to build a base on the moon and eventually conduct crewed missions to Mars.

Jonny Kim of NASA and Sergey Ryzhikov and Alexey Zubritsky of Roscosmos touched down in Kazakhstan on Tuesday (Dec. 9). When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Two Russian cosmonauts and an ...

Earth's orbiting satellites are commonly regarded as if they were suspended in mid-air. It is a fact that they actually experience a state of continuous free fall. This implies that they fall toward Earth continuously,