First visible light spectrum from exoplanet

Why are astronomers excited about the first directly obtained visible light spectrum - or rainbow array of visible colors - bounced from the surface of an exoplanet?

Ceres’ bright spots back in view

Dawn spacecraft has reacquired images of Spot 5, the mysterious bright double feature on the dwarf planet Ceres. The bright spots look ... as strange as ever.

Asteroid just missed Earth on Tuesday

It came close. 2015 HD1 passed just 0.2 lunar distances away (45,600 miles or 73,400 km).

Celebrate 25 years of Hubble Space Telescope

NASA has a whole slate of cool-looking activities in celebration of the 25th anniversary of the Hubble Space Telescope, starting on Monday, April 20!

Dawn spacecraft captures Ceres’ sunlit pole

After more than a month orbiting on Ceres' dark side, Dawn has captured enough images to make this animation of the dwarf planet's north pole.

Experience 2 months of Rosetta’s comet

Spectacular images from Rosetta spacecraft of Comet 67P/Churyumov-Gerasimenko between January 31 and March 25. Many different angles. Increasing activity!

New Horizons’ first color pic of Pluto

New Horizons spacecraft is now only three months away from its historic sweep through the Pluto-Charon system in mid-July. First image in color!

Watch April 16 telecon on MESSENGER’s crash into Mercury

After more than 10 years in space, the spacecraft will collide with Mercury, ending its mission, around late April. NASA telecon scheduled for April 16 at 1 p.m. EDT (17:00 UTC).

Liftoff!

SpaceX Dragon capsule now on its way to International Space Station after Tuesday's successful liftoff via Falcon 9 rocket. Rendezvous set for Friday morning.

Explaining the great 2011 Saturn storm

A storm on Saturn began in late 2010. Six months later, it wrapped entirely around the planet. Later, it subsided. Two planetary scientists explain.