In Nov. 2014, In a stunning historical achievement the European Space Agency succeeded not only to put the Rosetta probe into orbit around a comet, but amazingly to place the Philae lander on the comet’s surface.
Subsequently the batteries died, and signals stopped for 7 months, but have now resumed.
Philae is best known for transmitting startling images such as these:
OK, I’m not so sure about that last one.
Science Matters 