SKYWATCH: COSMIC RAYS, BLACK HOLES, AND MORE

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Cygnus X segment

NASA / Spitzer Space Telescope

Bulletin at a Glance

News Observing This Week’s Sky at a Glance Community

Another Origin for Cosmic Rays

November 24, 2011                                                                | Recent gamma-ray observations support the longstanding theory that superspeedy particles called cosmic rays have their origin in the havoc-ridden regions around young star clusters. > read more

Cygnus X-1, Exactly

November 21, 2011                                                                | Astronomers have pinned down the distance, mass, and spin rate for the first black hole candidate discovered, information that points to a birth sans supernova.  > read more

S&T’s 70th Anniversary Video Is Here!

November 16, 2011                                                                | Watch a behind-the-scenes video of how S&T came to be and what it’s like working at the magazine today. > read more

Observing

S&T: Lauren Darby

Tour December’s Sky by Eye and Ear!

November 26, 2011                                                                  | Venus lurks low in the western twilight after sunset. But after it gets good and dark, swing around to the east to see dazzling Jupiter, the King of Planets, amid a tower of brilliant early-winter stars that extends from the horizon to overhead. > read more

Trusty Comet Garradd

September 1, 2011                                                                  | Comet C/2009 P1 Garradd is shining at 7th or maybe even 6th magnitude as it traverses southeastern Hercules. > read more

Jupiter: Big, Bright, and Beautiful

September 23, 2011                                                                | The “King of Planets,” which will dominate the evening sky from late 2011 through early 2012, is a captivating sight no matter how you look at it. > read more

Ceres and Vesta in 2011

September 8, 2011                                                                | The two brightest asteroids are in fine view for binoculars or a telescope. Here are instructions and charts to find them. > read more

Uranus and Neptune in 2011

May 31, 2011                                                                  | Uranus and Neptune are easy to find with the aid of the charts in this article. > read more

This Week’s Sky at a Glance

View in bright twilight

This Week’s Sky at a Glance

November 18, 2011                                                                  | Venus stays up throughout twilight now. Jupiter blazes high all evening, the Mars-Regulus pair is up by midnight, and the Saturn-Spica pair shows at dawn. > read more

Community

VLA segment

Dave Finley / NRAO / AUI

Name That Telescope Array

November 22, 2011                                                                | Have a gift for picking good names? The newly updated Very Large Array wants a snazzy appellation to mark its second lease on life. Submit your suggestion by December 1st. > read more

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