Hubble Looks Into a Cosmic Kaleidoscope

This cosmic kaleidoscope of purple, blue and pink marks the site of two colliding galaxy clusters.

Alluvial Fans in Saheki Crater, Mars

Alluvial fans are gently-sloping wedges of sediments deposited by flowing water. Some of the best-preserved alluvial…

Liftoff of Cygnus Cargo Ship, Atlas V Rocket on Mission to International Space Station

A United Launch Alliance Atlas V rocket carrying Orbital ATK's Cygnus spacecraft on a resupply mission…

Cygnus Spacecraft Ready for Launch to the International Space Station

The Cygnus spacecraft sits on top of an Atlas V rocket ready for launch to the…

Map of Mars Gravity

A new map of Mars' gravity is the most detailed to date, providing a revealing glimpse…

Soyuz Lifts Off Carrying Jeff Williams and Crewmates to Station

A Soyuz rocket lifts off from rom the Baikonur Cosmodrome in Kazakhstan on March 19, (March…

Gantry Arms Close Around the Soyuz TMA-20M Spacecraft

The gantry arms close around the Soyuz TMA-20M spacecraft to secure the rocket, as seen in…

Haze Layers Above Pluto

This image of haze layers above Pluto’s limb was taken by the Ralph/Multispectral Visible Imaging Camera…

March 16, 1966: Gemini’s First Docking of Two Spacecraft in Earth Orbit

On March 16, 1966, command pilot Neil Armstrong and pilot David Scott successfully docked their Gemini…

South Africa From the Space Station’s EarthKAM

The remotely controlled Sally Ride EarthKAM aboard the International Space Station snapped this striking photograph of…