Back in November Philae landed on a comet. Philae was sent there by the ESA with the goal of getting as close to a comet as possible (on it is about as close as you can get) and having a look see at her particulars. Her mother ship, Rosetta, is hovering in the heavens (does a comet have a heaven) above her.
She was put to sleep to conserve energy as the comet, at the time, was further from the Sun. Now her position means she gets about twice as much solar power as before, which means she can deploy her solar wings, pick up some juice and start transmitting data.
That is happening now.
All very cool.
Home sweet home.