Space

SpaceX's first-ever crewed mission, a test flight called Demo-2, is scheduled to launch at 4:33 p.m. EDT today (May 27) from NASA's Kennedy Space Center in Florida.

Physicists are figuring out how close you can get to a black hole before you are unlikely to escape. That threshold is called the innermost stable circular orbit (ISCO).

Eleven billion years ago, a hot, active, eyeball of a galaxy glared across space. It formed in a violent collision, and could help explain the Milky Way's spiral.

Scientists have a new explanation for an explosive cosmic event in 1908 that flattened trees for hundreds of miles in a remote Siberian forest.

Using gravitational waves to approximate pi, physicists see no problem with Einstein's theory of general relativity.

A new paper used an advanced "Bayesian" model to show that the emergence of intelligent life on Earth was probably a lucky break.

Russia launched a military satellite to orbit on Friday (May 22), and the mission generated plenty of drama in the downward direction as well.

Tantalizing details about Mars' seismic activity have been revealed for the very first time.

Researchers using China's huge new FAST radio telescope are piecing together a technological strategy to carry out a major and sweeping search for extraterrestrial intelligence (SETI).

Genetic enhancement could allow humanity to push surprisingly far out into the final frontier.

What if one of the strangest, most unsettling findings in particle physics turned out to be an illusion? A new study suggest a simple physical explanation for a mysterious event.

A massive, rotating disk galaxy that first formed just 1.5 billion years after the Big Bang, could upend our understanding of galaxy formation, scientists suggest in a new study. 

New imagery pinpoints the spot where a baby planet is forming around the young star AB Aurigae, which lies 520 light-years from Earth.

Several U.S. companies have plans to mine the moon, but how would that work?

Annie Glenn, widow of the late NASA astronaut and U.S. Senator John Glenn — the first American to orbit the Earth — has passed away at the age of 100, NASA announced yesterday.

The U.S. Space Force's mysterious X-37B space plane successfully launched on its sixth mystery mission from Florida today (May 17).

China's FAST radio telescope has uncovered the first known pulsar in the star cluster Messier 92. The super-fast pulsating object forms one part of an eclipsing binary.

There's a microwave power experiment heading to space Saturday (May 16) aboard the Air Force's secretive X-37B spaceplane. Researchers hope it could lead to a new global power source.