Berkeley Lab astrophysicist Peter Nugent, working with Adam Riess of the Space Telescope Science Institute, used an IBM SP supercomputer at NERSC to analyze data from an exploding star that had been ...

Type Ia supernovae are critical tools in astronomy, since they all appear to explode with the same intensity, allowing us to use their brightness as a measure of distance. The distance measures ...

In 1996, an archaeologist named Aly A. Barakat was doing fieldwork in an Egyptian desert and stumbled across an unusual shiny black pebble now known as the Hypatia stone (after Hypatia of Alexandria).

Scientists have found that a nearby two-star system contains a precursor to a Type Ia supernova, an important class of star explosions used to measure the expansion rate of the universe. The ...

image: Photograph of a simulation of a Type Ia supernova explosion in the delayed detonation scenario. After the thermonuclear deflagration flame (purple surface) has burned the inner part of the ...