ESO / L. Calçada

Bulletin at a Glance News Observing This Week’s Sky at a Glance Community

One Star, Seven Planets

August 24, 2010 | European astronomers had found a bustling solar system in the southern constellation Hydrus: a Sunlike star with at least five and probably seven worlds swarming around it. > read more

Two Exoplanets in an Interactive Dance

August 26, 2010 | Two transiting planets of the star Kepler 9 are tugging on each other and swapping orbital energy back and forth. And there may be a third planet watching on. > read more

Jack Horkheimer Passes Away at 72

August 20, 2010 | The airwaves will no longer carry that signature phrase “Keep looking up!”, as an iconic figure of amateur astronomy died today at age 72. > read more

Big Bear’s Big New Eye

August 25, 2010 | The “first-light” image from the world’s largest solar telescope reveals details in an Earth-size sunspot only 50 miles across. > read more

Masayuki Tachikawa

Another Flash on Jupiter!

August 22, 2010 | Japanese observer Masayuki Tachikawa appears to have captured another impact on Jupiter, the second one in the past three months. > read more

Tour September’s Sky by Eye and Ear!

August 27, 2010 | Venus clings to the horizon in the west just after sunset, while mighty Jupiter rises in the east. Find out how to spot them — and much more! Host: S&T’s Kelly Beatty. (6MB MP3 download: running time: 6m 17s) > read more

Sky & Telescope diagram

This Week’s Sky at a Glance

August 27, 2010 | The Moon passes Jupiter. Venus, Spica, and Mars continue their evolutions low in the sunset. And have you looked for Mira yet? > read more

UCLA Dept. of Physics and Astronomy

Mount Wilson: One Year After the Fire

August 26, 2010 | In August-September 2009, a raging wildfire nearly destroyed Mount Wilson Observatory. But heroic firefighting efforts saved the historic site, and life on the summit is slowly returning to normal. > read more