A ten-year space mission launched by the European Space Agency is now reaching a vital stage, which involves landing on a comet millions of miles away from the Earth.
The comet-bound spacecraft, called Rosetta, is operating on a small amount of solar energy. The space probe has cruised out to a distance of nearly eight-hundred million kilometers from the warmth of the Sun. The next stage in Rosetta’s decade-long journey through space will be a historic encounter with a comet this August. The craft is now less than ten-thousand kilometers away and preparing to arrive. Scientists hope that Rosetta will unlock the mysteries of the oldest building blocks of our Solar System.