SpaceMystery cloud-like blobs over Mars baffle astronomers In 2012, amateur astronomers spotted at least one unidentified object rising into the Martian sky. Could auroras, volcanoes or aliens be to blame? News
SpaceSolo supernovae challenge cosmic distance standards Supernovae were thought to need help from a nearby star – if they don't, we may have to rethink how we measure cosmic distances as well as dark energy News