In an out of this world first, the space probe enters the gravitational pull of a comet ahead of a landing attempt scheduled for November.
The Rosetta spacecraft's mass spectrometers have been sniffing out the various aromas of comet 67P/Churyumov-Gerasimenko.
A large comet swooped in close to Mars over the weekend. NASA's orbiters had to hide from the debris, but still captured some great shots.
A rare close flyby of a comet near Mars put NASA's orbiters in a potentially dangerous situation, but also allowed them to study the moving space object.
The closest look ever at a new comet will happen when the mountain-size comet Siding Spring buzzes past Mars this weekend.
Next month, a lander named Philae will detach from the European Space Agency's Rosetta spacecraft and attach itself to a comet for a ride around the sun. What the landing spot is called is up to us.
Rosetta took a moment out from eyeing the comet it's following and snapped a selfie that's literally out of this world.
The Rosetta mission has narrowed down the selection of possible landing sites to just five candidates, but it's going to be tricky to touch down.
The craft, launched back in 2004, rendezvoused with comet 67P/GC, ahead of a planned landing in November.
An ESA spacecraft nears its target, a comet the Philae lander will saddle up to for a ride around our nearest star.