In one was a cloud in a bottle, for which high school demonstrators ignited alcohol fumes, followed by a fiery flash burst ...

NASA has just launched a mission to Jupiter's icy moon Europa. A NASA scientist answers kid's questions about the mission and its goals.

"They can penetrate metal on satellites, hit circuit boards, and can be carcinogenic if they hit a person in space." ...

Prior to the new research, scientists had traced the source of just 6 percent of the known meteorites that fell on our planet ...