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May 2, 2016

Strange 'hollows' on Mercury revealed by NASA probe as mission end nears

Mercury, the barren planet closest to the sun, may seem like a dead world, but new images taken by a NASA probe nearing the end of its life reveal the planet may still be undergoing geological activity.

May 2, 2016

Blood Moon: Shortest total lunar eclipse of the century rises Saturday

Only the speediest of skywatchers will have a chance to see the total lunar eclipse rising Saturday: NASA predicts that the total phase of the lunar eclipse will only last about 5 minutes, making it the shortest lunar eclipse of the century.

May 2, 2016

Giant alien planet has four suns in its sky

Planets with four suns in their sky may be more common than previously thought, a new study suggests.

May 2, 2016

The evolution of NASA's ambitious asteroid-capture mission

NASA's ambitious asteroid-capture mission has changed a lot since the agency officially announced its existence less than two years ago.

May 2, 2016

Total solar eclipse, supermoon, equinox: Friday’s celestial triple play

Friday is a huge day for skywatchers, offering a rare trifecta of celestial events – a total solar eclipse, a supermoon, and the vernal equinox.

May 2, 2016

Astronauts snap amazing total solar eclipse photos from space

Astronauts on the International Space Station caught sight of an amazing solar eclipse March 20, and they have the photos to prove it.

May 2, 2016

Total solar eclipse on Friday: How to watch it live online

Even though most people around the world won't be able to see Friday's total solar eclipse in person, anyone with an Internet connection can watch it live online thanks to two webcasts featuring the cosmic event.

May 2, 2016

Major solar storm hits Earth

A severe solar storm smacked Earth with a surprisingly big geomagnetic jolt Tuesday, potentially affecting power grids and GPS tracking while pushing the colorful northern lights farther south, federal forecasters said.

May 2, 2016

Jupiter's moon Ganymede has a salty ocean with more water than Earth

A salty ocean is lurking beneath the surface of Jupiter's largest moon, Ganymede, scientists using the Hubble Space Telescope have found.

May 2, 2016

Space ‘rain’ and black holes solve galactic star-making mystery

For decades, the reason why some galaxies produce more stars than others has remained a mystery. However, a team of astronomers at Michigan State University now believes they may have finally solved the riddle.