Meet Hera, the European Space Agency’s (ESA) very own asteroid detective. Hera, along with its two CubeSats, is about to set off on an incredible adventure. Credit – ESA / ScienceOffice.org In the ...

In the 18th century, an international group of astronomers referred to as the "Celestial Police” devoted themselves to the search of the "missing" planet between Mars and Jupiter. A planet was ...