Upper Limit on Star Mass
New research from the University of Michigan has determined that there's definitely an upper limit to the mass that stars…
Saturn Has an Unusual Hot Spot
The ringed planet Saturn has some of the most turbulent weather in the Solar System, including a powerful polar vortex…
Natural Colour Image of Rhea
NASA's Cassini spacecraft took this natural colour image of Saturn's moon Rhea. It seems to display bright, wispy terrain, which…
Report Says Beagle 2 Shouldn’t Have Flown
Beagle 2 should never have been approved to go to Mars according to an official report from the ESA/UK Commission…
Atlas and Proton Launch on the Same Day
International Launch Services (ILS) oversaw the launch of two rockets today, in different parts of the world. A Russian-built Proton/Breeze…
Wallpaper: V838 Monocerotis
Here's a 1280x1024 desktop wallpaper of V838 Monocerotis taken by the Hubble Space Telescope. Hubble has been watching this star…
Rovers are Getting a Little Dusty
Now on the surface of Mars for longer than a year, the twin Mars Exploration Rovers, Spirit and Opportunity, are…
Missing Matter Could Be Clouds of Gas
NASA's Chandra X-Ray Observatory has located two huge clouds of interstellar hot gas that could partially explain where all the…
Where Did the Modern Telescope Come From?
In this article Jeff Barbour explores the origins and development of that "Instrument of Long Seeing" known as the telescope.…
Swift is Now Fully Operational
Mission controllers used NASA's Swift satellite to capture this image of the Pinwheel Galaxy (M101) using its Ultraviolet/Optical Telescope (UVOT).…