Massive Smash-up at Vega (Artist Concept)

GALEX 1st Light Far Ultraviolet

Dwarfs in Coma Cluster

Plentiful Planetary System (Artist Concept)

Spitzer Makes "Invisible" Visible

Black Hole Swallows a Star

An Extended Stellar Family

Ancient Supernova Revealed

Gas Giants Form Quickly (Artist Concept)

Anatomy of a Triangulum

Chemical Soups Around Cool Stars (Artist Concept)

Chasing Chickens in the Lambda Centauri Nebula

NASA's Galaxy Mission Celebrates Sixth Anniversary

Laser-Sharp Jet Splits Water

The Helix Nebula: Unraveling at the Seams

All Pillars Point to Eta

Seagull Nebula -- Running with the Big Dog

Face on Barred and Ringed Spiral Galaxy NGC 3351

A Moon-size Line Up (Artist's Concept)

Homing in on 'Hot Dogs'

Backwards Spiral Galaxy

Our Chaotic Neighbor

Young Solar System in the Making (Artist Concept)

Two Brown Dwarfs in Our Backyard

Vivid View of Tycho's Supernova Remnant

Reigning Title-Holder for Coldest Brown Dwarf

Ice from the Solar System's Edge (Artist's Concept)

Galaxy Mission Completes Four Star-Studded Years in Space

Hubble-V

Kepler-20f -- An Earth-size World (Artist's Concept)

Short-Wavelength Infrared Views of Messier 81

NASA's Great Observatories Witness a Galactic Spectacle

A Nebula by Any Other Name

Spitzer's Sunflower Galaxy

Hustle and Bustle at Center of Milky Way

Disk Around a Massive Baby Star (Artist's Concept)

How to Map a Very Faraway Planet (animation)

NASA's Galaxy Mission Celebrates Sixth Anniversary

Saturn Family Tour

Spitzer Sees Stray Starlight (Artist's Concept)

Interacting Group of Galaxies Known as Stephan's Quintet

Exposing Black Holes Disguised in Dust

Alien Sunset (Artist Concept)

A Flame in Orion's Belt

Mystery of the Fading Star

NGC 1316

Bees in the Beehive

Warped Andromeda

Pointing a Finger at Star Formation

Black Widow Nebula Hiding in the Dust

The Mark of a Dying Star