Rosetta Wakes Up a Decade After Launch, Tweets


Tue, Jan 21st, 2014 21:00 by capnasty NEWS

Launched a decade ago, the European Space Agency's Rosetta, the first probe designed to attempt landing on the Comet 67P/Churyumov-Gerasimenko, announced waking up from its hibernation by tweeting the words "Hello World!".

Since its launch in 2004, Rosetta has made three flybys of Earth and one of Mars to help it on course to its rendezvous with 67P/Churyumov-Gerasimenko, encountering asteroids Steins and Lutetia along the way.

Operating on solar energy alone, Rosetta was placed into a deep space slumber in June 2011 as it cruised out to a distance of nearly 800 million km from the warmth of the Sun, beyond the orbit of Jupiter.

Now, as Rosetta’s orbit has brought it back to within ‘only’ 673 million km from the Sun, there is enough solar energy to power the spacecraft fully again.



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