The big story this month is the detection of Gravitational Waves by researchers using the twin Laser Interferometer Gravitational-wave Observatory. Albert Einstein predicted the existence of gravitational waves in 1916 in his general theory of relativity. Einstein's mathematics showed that massive accelerating objects (such as neutron stars or black holes orbiting each other) would disrupt space-time in such a way that 'waves' of distorted space would radiate from the source.
Links to Dimitri's story:
LIGO (Laser Interferometer Gravitational-wave Observatory)
60 Minutes in Space - Scientists from the Space Sciences Department at the Denver Museum of Nature & Science take you "behind the stories" using the best images and animation available to help understand the latest developments.