Cosmic Alligator Eats its Way through the Sky

Sounds of the Ancient Universe

Seagull Nebula -- Running with the Big Dog

The Sombrero Galaxy's Split Personality

Quasar Lenses

Kepler-11 Planetary System (Artist Concept)

Trigger-Happy Cloud

Quasar Drenched in Water Vapor

Backward Black Hole Shoots Powerful Jets (Artist's Concept)

A Vast Disk of Comets

Dwarfs in Coma Cluster

Galactic Bubble

Groth Deep Image

'Mini-Me' Solar System (Artist Concept)

Ghostly Remnant of an Explosive Past

WISE Eyes the Whole Sky

In the Blackest Night, a Green Ring Nebula

White Dwarf Stars

Edge-on Galaxy

Hubble Deep Field Image Unveils Myriad Galaxies Back to the Beginning of Time

Infrared Rose

Seven Sisters Get WISE

Galaxy Evolution Explorer Celebrates Five Years in Space

Three Great Eyes on Kepler's Supernova Remnant

Embryonic Stars Emerge from Interstellar "Eggs"

Galaxy Messier 83

NASA's Kepler Mission Discovers Its First Rocky Planet (Artist Concept)

Supersized Disk (Artist's Concept)

WISE Catches Comet 65P/Gunn

Asteroids in Virgo

Stars Spring up Out of the Darkness (Artist Concept)

Pointing X-ray Eyes at our Resident Supermassive Black Hole

The Seven Sisters Pose for Spitzer

Weird Warm Spot on Exoplanet

Steamy Solar System

WISE Reveals a Hidden Star Cluster

Ring Beholds a Delicate Flower

A Lesson in Counting Stars

Infrared Spotlight on Orion's Sword

Out of the Dust, A Planet is Born (Artist Concept)

What's Old is New in the Large Magellanic Cloud

Virgo Galaxy Cluster

Globular Cluster NGC 1851 in the Southern Constellation Columba

Oxygen in Orion

Galactic Hearts of Glass (Artist Concept)

Dwarf Star Erupts in Giant Flare

A Dying Star in a Different Light

Spitzer Reveals Stellar 'Family Tree'

Menkhib and the California Nebula

Orion's Dreamy Stars

Bent Galactic Jets