Astronomers Spot Most Distant Known Galaxy

Black Hole Grabs Starry Snack (Artist Concept)

The King of Rings

Galaxy Mission Completes Four Star-Studded Years in Space

Lighting up a Dead Star's Layers

Whirlpool Galaxy

Is There Anybody Home?

Light from Red-Hot Planet

Bursting with Stars and Black Holes (Artist Concept)

Portrait of Our Dusty Past (Artist Concept)

Sowing the Seeds of Planets? (Artist's Concept)

Three Great Eyes on Kepler's Supernova Remnant

Unmasking a Hidden Glow

IC 1795

Two Brown Dwarfs in Our Backyard

Cepheids as Cosmology Tools

Pointing a Finger at Star Formation

The Sombrero Galaxy's Split Personality

Little Galaxies Pack a Big Punch

Where Planets Take up Residence

Menkhib and the California Nebula

Big Black Holes Mean Bad News for Stars (diagram)

Thor's Helmet

Galaxy Evolution Explorer Spies Band of Stars

Quasar Drenched in Water Vapor

Anatomy of a Triangulum

The Extended Region Around the Planetary Nebula NGC 3242

Starburst Galaxy NGC 3310

Young Stars Emerge from Orion's Head

Cygnus Loop Nebula

NGC 5128 (Centaurus-A)

Hot, Carbon-Rich Planet (Artist Concept)

A Slice of Orion

WISE Catches Comet 65P/Gunn

All Eyes on Oldest Recorded Supernova

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

Lone Blazar

WISE 'First-Light' Image

Kepler-62f, a Small Habitable Zone World (Artist Concept)

Orion's Rainbow of Infrared Light

Morphology of Our Galaxy's 'Twin'

Dawn's Framing Camera Views Carina

NGC 300

Beyond the Veil

Rotten Egg Nebula

Altair

Spider Web of Stars in IC 342A

Fire within the Antennae Galaxies

Horsehead Nebula

Cool as a Stellar Cucumber