In 2019, then-President Donald Trump did something that hadn't happened in over seven decades: he formed a new branch of the United States military. The U.S. Space Force launched, taking much of its ...

How can we reach space without a rocket? This video explores the space elevator concept, a massive cable stretching from Earth to orbit. Engineers discuss new materials like carbon nanotubes and the ...

Traveling to space is brutal on the body. Spaceflight can cause astronauts’ bones to lose density, their brain and eye nerves to swell, and their genes to change expression. Research suggests spending ...