Silicates in Alien Asteroids

Spitzer's First Warm Images

All That Remains of Exploded Star

Barred Spiral Galaxy NGC 1365

Fires of Galactic Youth (Artist Animation)

NASA's Great Observatories Celebrate the International Year of Astronomy

Coma cluster of galaxies

Supersized Disk (Artist's Concept)

Dawn's Framing Camera Views Carina

A Distant Solar System (Artist's Concept)

Nursery of Giants

Trojan Colors Revealed (Artist's Concept)

The Light and Dark Sides of a Distant Planet

Anomalous Arms

Multi-Wavelength Views of Messier 81

Galactic Halos of Hydrogen

Whirlpool Galaxy

Life at the Intersection of Colliding Galaxies

Cosmic Alligator Eats its Way through the Sky

NGC 3627: Revealing Hidden Black Holes

Black Widow Nebula Hiding in the Dust

Galaxy Cluster and Giant Arc

The Homes of Quasars

Misty Star in the Sea Serpent

Dusty Dead Star

Galaxy Evolution Explorer Spies Band of Stars

Is There Anybody Home?

How to Find a Tiny Wobble in a Zippy Star

NuSTAR's First View of High-Energy X-ray Universe

Highlighting our Tiniest Neighbors

An Unexpected Scattering of Light

Double the Rubble (Artist Concept)

Comet 'Bites the Dust' Around Dead Star (Artist Concept)

M81 Galaxy is Pretty in Pink

A Twisted Star-Forming Web in the Galaxy IC 342

Wave of a Planet

The Universe's First Fireworks

Life's Starting Materials Found in Dusty Disk

Massive Smash-up at Vega (Artist Concept)

Gorilla Black Hole in the Mist

Short-Wavelength Infrared Views of Messier 81

Fornax Galaxy Cluster

Mini Planetary System (Artist Concept)

WISE Spies the Tarantula Nebula

Eyes in the Sky

Fun House Mirror in Space

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

NGC 5128 (Centaurus-A)

Orion's Big Head Revealed in Infrared

North America Nebula in Different Lights

Herschel Sees Through Ghostly Pillars