A New Engine Sends NASA’s Dawn Spacecraft on Its Way
Dawn spacecraft's mission to Ceres is made possible by a brand new ion engine that runs off individual atoms.
Scientists Discover Largest Black Hole Ever
Scientists recently discovered the largest black hole ever.
A Universe Where Time Runs Backwards
Running out of time? Not in a universe where time runs backwards.
Kepler: The Little Telescope That Could
A year after a potentially fatal setback, a rejuvenated Kepler telescope discovered the first exoplanet (outside the solar system) of its new mission.
Where is Water From? Probably Not Comets
A recently completed analysis of comet 67P/C-G by the Rosetta Space Craft has effectively ruled out comets as the primary source of Earth’s water.
How to Catch a Comet
Last week, the European Space Agency (ESA) successfully landed an unmanned probe (Philae) on a comet, a feat heretofore unmatched in human history
The Cassini Saturn Mission and the Allure of the Unknown
What the Cassini Saturn Mission teaches us about scientific discovery
Laika: The First Earthling in Space
The first Earthling was Laika, a Russian mongrel found on the streets of Moscow.