See Earth in Mars’ night sky

If you were standing on Mars, you could see Earth and the moon as two bright evening or morning "stars." A Mars rover captured this image of Earth in Mars' sky.

Dawn at Ceres reveals mystery features

Since Dawn slid into orbit on March 6, 2015, the spacecraft has found at least 2 mysterious features on Ceres - a dome-shaped mountain and the famous bright spots.

Meteorite reveals rare unstable element

A pink meteorite inclusion nicknamed Curious Marie shows that a highly unstable element, curium, was present in the early solar system.

Total solar eclipses in the USA

If you miss the total solar eclipse of August 21, 2017 - first such eclipse in contiguous U.S. since 1979 - you'll have to wait until 2024 to see the next one.

Asteroid 2013 TX68 passed safely Monday

The asteroid - whose precise trajectory was unknown - passed Earth on March 7 at 13:42 UTC (8:42 ET) at some 10 times the moon's distance.

Are solar eclipses more common than lunar eclipses?

It's sometimes said that, on a worldwide scale, solar eclipses outnumber lunar eclipses by about a three to two margin. True?

SpaceX landing attempt failed, as expected

Latest attempt to land Falcon9 first stage at sea was too "hot." Rockets landed too hard on drone ship and tipped. Elon Musk sees good chance for next time.

New cosmic distance record via Hubble

Astronomers pushed the boundaries of what's possible with the Hubble Space Telescope to see a galaxy at a time when the universe was only 3% of its current age.

Looking for ETs who see us

Astronomers speculate on some 100,000 nearby stars could harbor planets with inhabitants who might have discovered us and might be trying to contact us.

NASA astronaut returns from year in space

NASA's Scott Kelly and cosmonauts Sergey Volkov and Mikhail Kornienko landed safely in Kazakhstan on March 2. The landing wraps up Kelly's one-year mission aboard the ISS.