Astronauts lose bone and muscle mass on long-duration missions, but a new treatment administered to mice in space could prevent that from happening, a new study finds.
The imaging sensors for the future Vera C. Rubin Observatory have taken their record-breaking first photos.
People around the world believe our planet is flat. Here's the (surprising) truth about debating them.
Physicists have found a new paradox in quantum mechanics that throws doubt on some common-sense ideas about physical reality.
Astronomer Jackie Faherty has teamed up with some of the world's leading scientists to create a new Astronomy course that people can take from the safety of their own homes.
For black holes, a collision doesn't have to be a once-in-a-lifetime experience, new research suggests.
NASA's highly anticipated mission to the Jupiter ocean moon Europa needs a rocket — and soon, the project's planners say.
In many ways, Venus shows us an Earth that could have been; the twin that grew up in a different environment.
Groups of stars can tear their planet-forming disk to shreds, leaving behind warped, misaligned rings, scientists find in a breakthrough study.
An asteroid the size of a jumbo jet will have a close encounter with Earth today (Sept. 1), zooming past our planet at about one-third the average distance to the moon.
A study using commercial aircraft has found that ozone has increased over the Northern Hemisphere over the past 20 years.
Galactic halos are both more massive and more complicated than scientists realized, according to new observations from the Hubble Space Telescope.
A golden age may be coming for human spaceflight research as more astronauts than ever fly to the International Space Station aboard commercial crew vehicles and through private companies.