Navigation for Spaceships Using X-ray Pulsars: Introducing XNAV

This could be the ultimate galactic GPS system: using pulsars as an interstellar navigation tool. Rapidly spinning neutron stars emit focused beams of X-rays into space and many, with accuracy as good as an atomic clock, have been mapped by astronomers. Now these pulsars may have a very important practical use. These interstellar beacons may …

A Black Hole Observed in the Heart of Mysterious Omega Centauri

Omega Centauri is a strange thing. It’s been classified as a star, then a nebula, then a globular cluster and now it’s thought to be a dwarf galaxy missing its outer stars. Why is it in such a mess? How can this oddball galaxy be explained? New research suggests it has an intermediate-black hole living …

Centaurid Meteor Shower Delights Southern Hemisphere…

While normally our friends in the Southern Hemisphere get left out of most major meteor showers, now is the time to keep alert for the Alpha Centaurids which are active during the entire month of February. While the Alpha Centaurids are considered a minor meteor shower, they do create some interesting viewing during the summer …

What’s Up this Week: September 24 – September 30, 2007

Monday, September 24 – In 1970, the first unmanned, automated return of lunar material to the Earth occurred on this day when the Soviet’s Luna 16 returned with three ounces of the Moon. Its landing site was eastern Mare Fecunditatis. Look just west of the bright patch of Langrenus. Tonight our primary lunar study is …

What’s Up this Week: September 10 – September 16, 2007

Monday, September 17 – Today in 1789, William Herschel discovered Saturn’s moon Mimas. Tonight we’ll discover our own Moon as we have a look at one of the last lunar challenges that occur during the first few days of the Moon’s appearance – Piccolomini. You’ll find it to the southwest of the shallow ring of …