Recreating Our Galaxy in a Supercomputer

Astronomers at Caltech have created the most detailed computer simulation yet of how our Milky Way galaxy was formed, from inception billions of years ago as a loose collection of matter to its modern state as a massive, spiral disk of stars. Read the rest

Cassini captures strange red arcs on Saturn's moon Tethys

Researchers created this enhanced-color image by compositing recent shots of Tethys taken by Cassini. Current top hypotheses for the unusual red arcs are: Read the rest