Self-Repairing Spacecraft
After launch, spacecraft are on their own. They have no way to repair damage from the tiny micrometeorites that inevitably…
Saturnian Storms About to Merge
In this photograph taken by Cassini, two storms are visible raging across the surface of Saturn; they're reaching out and…
Satellites on a Budget – High Altitude Balloons
Paul Verhage has some pictures that you'd swear were taken from space. And they were. Amateur Radio High Altitude Ballooning…
Asteroid Broke Up 8.2 Million Years Ago
Astronomers think they've found evidence that an asteroid broke up about 8.2 million years ago, scattering dust around the Solar…
Juventae Chasma on Mars
This image, taken by the European Space Agency's Mars Express spacecraft, shows Juventae Chasma, in the Lunae Planum region of…
Kuiper Belt-Like Disks Around Two Nearby Stars
After surveying 22 nearby star systems, NASA's Hubble Space Telescope has discovered two bright debris disks that resemble our own…
Natural Particle Accelerator Discovered
A fleet of NASA and ESA spacecraft have spotted an immense jet of electrically charged particles in the solar wind…
Fossil Galaxy in the Early Universe
NASA's Far Ultraviolet Spectroscopic Explorer (FUSE) satellite has spotted a distant dwarf galaxy undergoing a burst of star formation. This…
Kuiper Belt Moons Might Be More Common
Just a few years ago, Pluto was considered unusual for Kuiper Belt Objects because it has a moon. Now three…
Hit and Run Planets
The composition of many planets, asteroids and meteorites could be explained by the theory of "hit-and-run" collisions. Scientists originally believed…