SUNSET: 
Transit of Luna
Click on image for a 2MB animation.NASAOn February 25th the Moon crossed the Sun in an unearthly annular eclipse — one that can never be seen from Earth. These ultraviolet images were taken by one of NASA’s two STEREO solar observatories, which were launched last October and are now watching…
Using Digital Imagery to Detect Earth's Penumbra
With a little help, you can see the first hint of the Earth's shadow — the penumbra — on the Moon's surface. Here's what you need to know.
A Killer Blast?
Click on image for a 1MB animated GIF.Brian Fields, Themis Athanassiadou, Scott Johnson, and NASA.A supernova popping off near Earth could spell big trouble for our biosphere. University of Illinois astronomer Brian Fields and two colleagues used a computer to simulate what would happen if a star 30 light-years away…
The Hyades Movie
The above is a still from a movie showing the rotation of the stars of the Hyades Cluster, separate from unrelated stars in Taurus.Anthony Brown In 1997 scientists associated with the Hipparcos satellite published a 3-D map of stars in the Hyades cluster. It was the first time that the…
Galaxies in Collision
Animations of the Milky Way colliding with the Andromeda Galaxy
