Outer Space

Did two sub-moons collide to form our Moon?

Splat! Two Moons over Miami?

An artist's concept of what planet TrES-2b might look like

Faraway Planet is Blackest Yet Found

The planet, TrES-2b, is a gas giant about the size of Jupiter. But that's where the similarities end

Wernher von Braun would come to personify NASA's space exploration program.

Wernher von Braun's V-2 Rocket

Although the Nazi "vengeance weapon" was a wartime failure, it ushered in the space age

Astronaut Alan Shepard in his pressure suit, for the Mercury-Redstone 3 (MR-3) flight, the first American manned space flight. On May 5, 1961, Shepard piloted the Freedom 7 mission and became the second person, and the first American, to travel into space.

On May 5, 1961, Alan Shepard Went to Outer Space and Came Home

Today marks the 50th anniversary of the first American in space

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Space Artist Robert McCall Dies at 90

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Hubble Takes New Pluto Pics

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Moving Beyond Earth Opens at Air and Space

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Picture of the Week—The Kappa Crucis Cluster, a.k.a. the "Jewel Box"

The Abbé Nicolas-Louis de Lacaille was the first to find this cluster of stars in 1751 while on an astronomical expedition to the Cape of Good Hope

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Thursday News Roundup — Black Holes, Traveling to Titan, and More Spiders

The robotic Cassini spacecraft which is now orbiting Saturn looked back toward the eclipsed Sun and saw a view unlike any other.

Fantastic Photos of our Solar System

In the past decade, extraordinary space missions have found water on Mars, magnetic storms on Mercury and volcanoes on the moons of Saturn

Hubble Telescope Gets Back to Work

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"The Camera that Saved Hubble" Coming to the Smithsonian

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Picture of the Week—Christmas Tree Cluster

If it is clear out tonight, grab your binoculars or a telescope and look up at the constellation of Monoceros, the Unicorn

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Sixteen Years of Black Hole Watching Pays Off

How do you prove that a black hole exists? It is so dense, not even light can escape its grasp

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Seeing Stars About Overhead Projectors

The Large Magellanic Cloud, NASA

Loud and Clear Department: Intergalactic Telegrams

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From the Castle

Hello? Hello?

"Tinkerbell" in Southern Skies

Since early 2004, the Mars rovers have gathered images of rocks and terrain where water, the presumed prerequisite of life, once flowed (an artist's rendition).

Life Beyond Earth

An ocean on Mars. An Earth-like planet light years away. The evidence is mounting, but are astronomers ready to say we're not alone?

The surface of Wild 2 is pockmarked with craters.

Clues from a Comet

The first mission to collect space matter from beyond the moon offers insights into the solar system's creation

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