After ten years of travelling (Are we there yet?), the spacecraft Rosetta, lead by investigators in ESA (European Space Agency), has finally reached its destiny: the 67P/Churyumov-Gerasimenko comet.
Since the 2nd of March of 2004, the explorer has travelled the unimaginable distance of 400 million kilometres, and it was only now, on the 6th of August of 2014, that it managed to move close enough to the comet and actually obtain a relative velocity of 1 m/s compared to the space rock. This makes Rosetta the first man made object to rendezvous with a comet.67P, which resembles a rubber duck due to the odd shape formed by two rocks fusing in space, is of interest because it was formed from the remnants of the original formations in the beginning of our Solar System, so it could provide vital information on water and the origin of life. That’s why Rosetta will now spend the next 16 months investigating 67P’s characteristics, first from 100km away to study its shape and eventually moving closer. But Rosetta won’t work alone. A small probe named Philae will soon land on the surface of the comet, after scientists at the ESA decide on a safe landing spot. Once there, it will dig into the surface and analyse what its composition, and even use X-rays to visualise the structure. Meanwhile, the dusty and icy comet will travel at 55000 km/h towards the Sun, heating up expelling dust which Rosetta will analyse.
There’s a lot to be learned form this comet, and this will take time, but after ten years, the climax of the story has only but started. Be prepared to hear amazing discoveries from this dedicated project.