Zero gravity environments can cause astronauts to misjudge the size and distance of some objects. Not helpful if you're aiming to land on the third rock from the Sun and end up missing it because it looked closer than it actually was. I was surprised to learn though the part that our inner ears play in orientating ourselves: Humans orientate in 3D by using otoliths, small crystals of calcium ... Read full entry

Does a boomerang thrown in space return to its pitcher? Yes. If it is thrown inside an air filled area, such as a space station, as was the case last week aboard the International Space Station, for Japanese astronaut Takao Doi. If, however, the boomerang had been thrown outside the space station in the vacuum of space, there would be no aerodynamic forces to make it return to its thrower, ... Read full entry