Close pass from asteroid 2017 GM!

Asteroid 2017 GM is one of the 10 closest asteroids known so far to sweep past Earth, and then keep going. At its closest, it was less than 1/20th of the moon's mean distance.

Asteroid close encounter on April 2

The near-Earth asteroid 2017 FU102 has a very close, but safe, encounter with Earth on April 2, 2017, sweeping to within just over half the moon's distance.

Watch Thursday’s spacewalk

Two ISS astronauts will be outside the space station beginning about 8 a.m. EDT (12:00 UTC) on March 30. The spacewalk is expected to last about 6.5 hours. Links to live viewing here.

Watch SpaceX rocket launch Thursday

The launch window for the reused - "flight proven" - Falcon 9 rocket opens at 18:27 EDT (22:27 UTC) on March 30. There's a two-and-a-half-hour launch window. Links to the live launch here.

Watch a full rotation of the moon

Wonderful video from the Lunar Reconnaissance Orbiter, a NASA spacecraft in a polar orbit around the moon since 2009. The moon as you've never seen it!

Another Planet 9 search! You can help

This one will use images of the sky visible from Earth's Southern Hemisphere. You can help from anyplace on the globe. The search is for a 9th major planet in our system, nicknamed Planet 9.

7 Earth-sized worlds? What we really see

A reality check from astrophysicist Brian Koberlein on what we actually see of the 7 recently discovered Earth-sized planets orbiting the star TRAPPIST-1.

Bodies freed from gravity’s grip

Life on Earth is used to gravity. So what happens to our cells and tissues in space?

Moon shadow path in 2017 solar eclipse

Fly along with the moon’s shadow in this NASA video depicting the path of the August 21, 2017 total eclipse of the sun.

Most US wildfires ignited by people

A study reports that 84% of U.S. wildfires between 1992 and 2012 were started by things like discarded cigarettes, unattended campfires, and arson.