Medium-sized black holes have been theorized about but not discovered; a new black hole confirms its existence.
Two high school students spotted a pulsar-neutron star binary in 2012, which is now considered a rare find.
Astronomers across the world are now glued to identifying the source behind the unusual radio burst that is said to have happened 5.5 billion light years.
A pulsar which was under observation for the last five years has suddenly disappeared as it entered a space-time warp.
