A powerful Proton booster launched at 0931:42 GMT Monday with the first part of a multibillion-dollar Mars mission led by the European Space Agency. The Mars orbiter and lander will search for signs of methane on the red planet, and demonstrate technologies to be used on a future European Mars rover.
Two years ago, on February 15th, the morning routine of the Chelyabinsk region in Russia was shattered by the arrival of a 20-metre-wide meteoroid that dramatically fragmented in the atmosphere. The ensuing shockwave shattered windows, damaged buildings and 1,491 people received injuries. What have we learned since 2013?