A Lesson in Counting Stars

Devastated Stellar Neighborhood

Why Are Galaxies So Smooth?

Embryonic Stars Emerge from Interstellar "Eggs"

Unmasking a Hidden Glow

Bursting with Stars and Black Holes (Artist Concept)

NGC 6744 -- A Sibling of the Milky Way

WISE Spies the Tarantula Nebula

Exotic World Blisters Under the Sun (Artist Concept)

In the Blackest Night, a Green Ring Nebula

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

Spitzer Sees Water Loud and Clear

Tycho's Supernova Remnant

Chemical Soups Around Cool Stars (Artist Concept)

NGC 3627: Revealing Hidden Black Holes

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

Black Widow Nebula Hiding in the Dust

NASA's Great Observatories Witness a Galactic Spectacle

GALEX 1st Light Near Ultraviolet -50

Silicates in Alien Asteroids

Irregular Dwarf Galaxy IC 1613

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

Cosmic Fountain of Crystal Rain

Double the Rubble (Artist Concept)

The Story of Our Universe

Little Galaxies Pack a Big Punch

Barred Ring Galaxy NGC 1291

Morphology of Our Galaxy's 'Twin'

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

Stars Gather in 'Downtown' Milky Way

NGC 1291

Trigger-Happy Cloud

Scoping the Sisters

Galaxy Centaurus A

Ancient Galaxy Cluster Still Producing Stars

Omega Centauri

The Swirling Arms of the M100 Galaxy

Planetary Family Portrait

Magician of a Planet Disappears to Reveal Itself

Jumbo Jellyfish or Massive Star?

Spectrum from Faint Galaxy IRAS F00183-7111

Cosmic Epic Unfolds in Infrared

Misty Star in the Sea Serpent

Celestial Cities and the Roads That Connect Them

Star Clusters Young and Old, Near and Far

Slender Galaxy with Robust Black Hole

Multi-Wavelength Views of Protostars in IC 1396

How to Map a Very Faraway Planet (animation)

Anomalous Arms

Dusty Death of a Massive Star

A Bubble Bursts