Microgravity by Tiana and Sammy

Who doesn't love rollercoasters? We could spend days on them! Your stomach jumps into your throat and you feel like you're floating. That feeling is weightlessness, which is kind of like what astronauts feel in space. Astronauts call it microgravity, because during the fall you feel only a tiny amount of gravity's pull. We wondered: how do ordinary things behave in microgravity? more...