Solar Flares Altered Mars’ Atmosphere
Boston University astronomers announced today that they've found evidence that solar flares change the upper Martian atmosphere. The researchers found…
Van Allen Safe Zone Migrates
The Earth's magnetic field concentrates solar radiation into a series of regions called the Van Allen belts. Any spacecraft or…
The High Cost of Boots on the Moon
When President Bush announced his new Vision for Space Exploration in January 2004, he set NASA on a new course…
Redesigning Universe Today… Again
In case you haven't noticed yet, I've redesigned Universe Today... again. I know I do this almost every year, but…
Pluto Was Born With Its Moons
Pluto and its three moons were likely formed together when two large objects collided millions of years ago. Charon has…
Dark Lava Floor of Crater Billy
This image of the lunar crater Billy was captured by the Advanced Moon Imaging Experiment (AMIE) on board ESA's SMART-1…
Nearby Exoplanet is Scorching Hot
NASA's Spitzer Space Telescope has uncovered a hot extrasolar planet orbiting a nearby star. Planet HD 189733b orbits its parent…
New Type of Star Discovered
UK astronomers have used the Jodrell Bank Observatory to discover an entirely new class of objects. These new kinds of…
Southern Enceladus Covered in Fresh Snow
This false colour image of Saturn's moon Enceladus shows incredible features across its surface, invisible in natural colour. The bluish…
Gemini Counts Up the Dark Matter in NGC 3379
Australian astronomers have used the powerful Gemini observatory to measure the amount of dark matter in the heart of galaxy…