Craters on Vesta and Ceres Could Show Jupiter’s Age
[/caption] Scientists use crater distributions to tell the ages of planetary surfaces on rocky bodies. But how can the ages…
Son of Israeli Astronaut Killed in Plane Crash
[/caption] Sad news to report: The son of Israeli astronaut Ilan Ramon was killed Sunday when his F-16 warplane crashed…
Space Shuttle Discovery Returns Home (Video)
There's nothing prettier than watching the space shuttle land. Sure, it drops like a rock, a piano, a safe; but…
Hertzsprung-Russell diagram
[/caption] Stars can be big or small, hot or cool, young or old. In order to properly organize all of…
LCROSS Impact Site on Moon Announced: Cabeus A
[/caption] On October 9, 2009, at 7:30 a.m. EDT professional and amateur astronomers alike will be focusing their telescopes on…
Albedo Effect
Astronomers define the reflectivity of an object in space using a term called albedo. This is the amount of electromagnetic…
The Big Bang Writ Little
If you are into Twitter (as I am), you might enjoy this: New Scientist challenged their readers to encompass the…
Earth From Space: Plankton Bloom
[/caption] What a gorgeous shot of our blue planet! This Envisat satellite image taken on August 19, 2009 captures a…
Weekend SkyWatcher’s Forecast – September 11-13, 2009
Greetings, fellow SkyWatchers! Now that the Moon is backing off the early evening skies, it's time to enjoy some more…
Schwarzschild Radius
[/caption] A black hole is an object where the gravity is so powerful that nothing, not even light can escape…