NASA has once again showcased the beauty of our planet with mesmerizing nighttime images of Earth captured from the ...

While people go about their daily routines, the planet is in perpetual motion, rotating through its own magnetic field. A new ...

Green oceans on early Earth, shaped by iron, pushed microbes to evolve light-absorbing tools that worked in green light.

The photo at left is an enhanced-color image of Neptune from the Hubble Space Telescope. At the right, that image is combined ...

In the waters off Iwo Jima, a volcanic island in Japan’s Satsuma archipelago, the sea has a distinct green tint. It’s not ...

NASA astronaut Don Pettit captured two amazing videos of the auroras from his unique perch above Earth last week.

Uranus seemed like a fairly calm, blue-green planet. But new findings from Hubble paint a different picture of Uranus.

Nearly three fourths of Earth is covered by oceans, making the planet look like a pale blue dot from space. But Japanese ...

Some of the unusual rocks carry stories about water on Mars. One has hints of long-gone microbes. All tell of a dynamic, complex planet.

NASA's vast archive of science data, over 100 petabytes and counting, is proving to be a timeless treasure trove for new ...

After adjusting to microgravity—and getting through a few bouts of vomiting—the astronauts got to work in polar orbit.

An analysis of two decades of data from NASA's Hubble Space Telescope has provided fresh insights into the complex ...