This Week in Science: A moving country, a cosmic first, and much more! We start with a giant earthquake that may have moved Japan . A new analysis reveals a 2011 earthquake sent a seismic wave all the way down to Earth's core and back again, and it may have shifted parts of the country. Also this week: Liking onions could reveal genetic clues about future health We may have detected the first signature of a black hole's event horizon Younger adults appear biologically older than earlier