European Spacecraft Hera Observes Asteroid After NASA Impact

London. Four years ago, a European spacecraft has started observing from close range the asteroid that the American space agency NASA had hit during Earth's defense test.

As announced by the European Space Agency (ESA) on Wednesday, the spacecraft named 'Hera' is currently studying the asteroid 'Didymos' and its small moon 'Dimorphos' from a distance of 25 to 30 kilometers.