(Updated: April 24, 2021)
NASA, ESA, and Hubble Heritage (STScI/AURA), W. Blair (STScI/ JHU) and R. O Connell (UVA) / TASCHEN
On April 24, 1990, the Hubble Telescope hitched a ride aboard the space shuttle
Discovery and began its ascent into low-earth orbit, where it has remained ever since, exploring the great unknown and projecting images that have helped scientists and the public at large make better sense of our place in the universe.
Expanding Universe. Photographs from the Hubble Space Telescope, a book published by TASCHEN, offers a collection of amazing images from the scope, which has explored everything from black holes to exoplanets. Here are 15 of its most magnificent pictures.
Scientific American
Upgrades to the SuperNova Early Warning System (SNEWS) detection system offer advance notice of impending blasts
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Discovered in 1987, Supernova 1987A is the closest exploding star to Earth to be detected since 1604. It resides in the nearby Large Magellanic Cloud, a dwarf galaxy adjacent to our own Milky Way. Credit: NASA, ESA, K. France
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Sky watchers both amateur and professional will soon have a new system to alert them to the spectacular death throes of stars in our galaxy. A revamped version of the SuperNova Early Warning System (SNEWS), a software program hosted on servers at Brookhaven National Laboratory on Long Island, New York, will soon provide more reliable, precise and timely notice of any star going supernova in the Milky Way an event that promises to be a once-in-a-lifetime display.