NASA's Spitzer Finds Water Vapor on Hot, Alien Planet (Artist's Concept)

Galactic Hearts of Glass (Artist Concept)

Artist's Impression of Pulsating Object LRLL 54361

Galaxy NGC5398

The Light and Dark Sides of a Distant Planet

Exotic Exoplanet (Artist's Concept)

Quasar Lenses

Galaxy NGC 247

Sombrero Galaxy Not So Flat After All

Groth Deep Locations Image

Through the Universe's Looking Glass

A Star-Bursting Filament

Trifid Nebula

The 'Pacman Nebula'

WISE Catches a Runaway Star in Flames

NGC 7380

Kepler's Diamond Mine of Stars

A Glimmer in the Eye of WISE

Bubbly Little Star

Zeta Ophiuchi -- Runaway Star Plowing through Space Dust

Ring Beholds a Delicate Flower

Orion's Dreamy Stars

Life's Starting Materials Found in Dusty Disk

Infrared Ring around Saturn

Star Formation in the DR21 Region (A)

Starburst Galaxy NGC 3310

Churning Out Stars

It's Twins! Spitzer Finds Hidden Jet

Galactic Bubble

Where Kepler Sees

Andromeda's Colorful Rings

A Star's Close Encounter

NGC 5128 (Centaurus-A)

Diverse Group of Galaxy Types, NGC 3190 Field

Kepler-20e -- The Smallest Exoplanet (Artist's Concept)

First Map of Alien World (animation)

Star Formation in Henize 206

Little Galaxies Pack a Big Punch

Slender Galaxy with Robust Black Hole

Planck's First Glimpse at the Universe

Herschel Sees Through Ghostly Pillars

How to Find a Planetary Hot Spot

A Sky Chock-Full of Black Holes

Artist's Impression of Starburst Galaxy

Blinded by the Light (Artist Concept)

Fun House Mirror in Space

Dark Wombs of Stars

Once an Onion, Always an Onion (Artist Concept)

Ingredients for Life (Artist's Concept)

Heart and Soul

Charting Ingredients for Life