MathematicsMathematicians have found a hidden 'reset button' for undoing rotation Mathematicians thought that they understood how rotation works, but now a new proof has revealed a surprising twist that makes it possible to reset even a complex sequence of motion News
SpaceMartian volcanoes may have transported ice to the planet's equator The equatorial regions of Mars are home to unexpectedly enormous layers of ice, and they may have been put there by dramatic volcanic eruptions billions of years ago News