NASA / ESA / M. Robberto / HST Orion Treasury Project Team
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Bulletin at a Glance |
Revisiting Orion’s Stellar Membership
October 22, 2012 | The Orion Nebula hosts a well studied star cluster, the gold standard by which astronomers measure all other clusters. New research suggests that this benchmark might need to be revised. > read more
Auroras Grace Stellar Skies
October 23, 2012 | Stunning auroras play in Earth’s upper atmosphere, and similar cascading curtains grace the skies of giant planets, brown dwarfs — and even small stars. > read more
Beads on a Galaxy-Scale String
October 24, 2012 | A new image from the Australia Telescope Compact Array shows a series of brilliant knots along the jet shooting from a supermassive black hole. While not the first sighting of a string of pearls gracing a galaxy’s jet, the new image is a striking look at a mysterious phenomenon. > read more
The Flares from Milky Way’s Black Hole
October 25, 2012 | Our galaxy’s central supermassive black hole emits regular, mysterious X-ray flares. For the first time, NASA’s newest sharp-eyed telescope has captured a high-energy view of the action. > read more
Fomalhaut b: An Exoplanet Redeemed
October 26, 2012 | New analysis suggests that Fomalhaut b — an exoplanet discovered in 2008 and disputed ever since — really does exist. > read more
Sky & Telescope diagram
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Tour November’s Sky by Eye and Ear!
October 21, 2012 | Mars is very low in the west after sunset, and Jupiter rises a couple hours later. But most of the planetary action is in the eastern sky before dawn. > read more
Sky & Telescope diagram
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This Week’s Sky at a Glance
October 26, 2012 | The Moon shines with forthcoming winter sights low in the east, while summer stars still descend in the west — including Arcturus, now taking on its guise as the Ghost of Summer Suns. > read more
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