NASA’s Hubble Space Telescope Finds Dead Stars ‘Polluted with Planet Debris
This is an artist’s impression of a white dwarf (burned-out) star accreting rocky debris left behind by the star’s surviving planetary system. It was observed by Hubble in the Hyades star cluster. At lower right, an asteroid can be seen falling toward a Saturn-like disk of dust that is encircling the dead star. Infalling asteroids pollute the white dwarf’s atmosphere with silicon. Credit: NASA, ESA, and G. Bacon (STScI)
The Best Pictures Of Every Planet
Auroras of February and March
(Source: National Geographic)
solar flares (up to 300 000 km long) and sunspot (approx 27 000 km across) captured by the swedish solar telescope in 2002.
Looking out in Wonderment by Jacki
Sun Shot by Alan Friedman
Florian Breuer and Elmar Akhmetov
Messier 82, also known as the Cigar Galaxy, is a starburst galaxy about 12 million light-years away in the constellation Ursa Major. Starburst galaxies undergo extremely high rates of star formation and are thought to represent a particular phase in a galaxy’s evolution. Because of its excessive star birth, M82 is five times brighter than our own Milky Way galaxy.
This image, from the Mount Lemmon SkyCenter, required a 28-hour exposure using the 32-inch Schulman telescope.
Image: Adam Block/Mount Lemmon SkyCenter/University of Arizona [high-resolution]
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