NASA - National Aeronautics and Space Administration

Anatomy of a Shooting Star

Johnny Appleseed of the Cosmos

'That's Hot!' Galex Celebrates Four Years in Space

Scene of Multiple Explosions

Ghostly Remnant of an Explosive Past

Nova Shell Around Z Camelopardalis

Explosions -- Large and Small

Older Galaxy Pair Has Surprisingly Youthful Glow

Black Hole Grabs Starry Snack

Baby Galaxies in the Adult Universe

This artist's conception illustrates the decline in our universe's "birth-rate" over time. When the universe was young, massive galaxies were forming regularly, like baby bees in a bustling hive. In t...

Stellar Ripple

Approximately 100 million years ago, a smaller galaxy plunged through the heart of the Cartwheel galaxy, creating ripples of brief star formation. In this image, the first ripple appears as an ultravi...

Fires of Galactic Youth

12.21.04

Baby Galaxies in an Adult Universe

12.21.04

Nearby Newborns

12.21.04

The Lives and Times of Stars

This image of the nearby spiral galaxy M101, better known as the Pinwheel Galaxy, is a three-color combination of images from NASA's Galaxy Evolution Explorer (GALEX) spacecraft. The ultraviolet light...