In June of 2009, a committee met at the University of Wisconsin-Madison to do a routine safety review of proposed research projects.
One of those projects involved genetically modifying flu viruses. And during the review, the committee brought up the idea of "dual-use" research. "Dual use" means legitimate scientific work that's intended to advance science or medicine, but that also might be misused with the intent to do harm.
A discarded chunk of a Russian rocket forced six space station astronauts to seek shelter in escape capsules early Saturday, then ultimately safely passed in front of the space station, according to NASA.
NASA spokesman Rob Navias told The Associated Press ahead of the incident that the space junk would barely be close enough to be a threat. But if it had hit the station, it could have been dangerous, so the astronauts — two Americans, three Russians and a Dutchman — woke early and climbed into two Soyuz vehicles ready to rocket back to Earth just in case.
There's a small spacecraft called Messenger that's been orbiting the planet Mercury for a year. Today, at the Lunar and Planetary Science Conference in Houston, astronomers revealed what they've learned about the innermost planet in our solar system, and some of the new knowledge is puzzling.
Maria Zuber, a planetary scientist at the Massachusetts Institute of Technology, studied a large crater 900 miles across called Caloris.