Confirmation of the existence of a supermassive black hole in the center of galaxy M84. A spectrograph mapped the rotation of gas at the galaxy's center and the colorful zigzag pattern offers the evidence. If no black hole were present, the line would be nearly vertical.
The spiral galaxy M51, dubbed the Whirlpool Galaxy, seen in near-infrared light.
New image of the Orion Nebula from the Wide Field Imagery camera at the La Silla Observatory in Chile.
The Andromeda Galaxy is more is than twice the size of our Milky Way, measuring over 200,000 light-years across.
NASA marked the silver anniversary of Voyager 2's approach to Uranus. These two pictures of Uranus -- one in true color (left) and the other in false color -- were compiled from images returned Jan. 17, 1986, by the narrow-angle camera of Voyager 2.
This shot of British Columbia's mountain range marks the first official image taken from the International Space Station's new Window Observational Research Facility.
NASA's Mars Exploration Rover Opportunity investigating a crater called "Santa Maria," which has a diameter about the length of a football field.
The H-2B Launch Vehicle No. 2 blasts off from the launching pad at Tanegashima Space Center on the southern Japanese island of Tanegashima on Saturday Jan. 22, 2011. The rocket carrying supplies for the International Space Station successfully lifted off from the remote island Saturday on a mission designed to help fill a hole left by the retirement of NASA's space shuttle program.
Polar Ring Galaxy NGC 660 located more than 20 million light-years away near the constellation Pisces.
The blueish stars in this image, from east to west, are Alnitak, Alnilam, and Mintaka - also known as the Belt of Orion.
Rare imagery of a storm on the planet Saturn, taken by the Cassini spacecraft.
NASA's NanoSail-D soars in Earth orbit in this artist's illustration. The unfurling marks the first time a NASA craft has ever opened a solar sail in low-Earth orbit.