Late last week, the world watched with amazement and wonder as the Philae lander landed on the surface of a comet. That amazement ...

The jubilation of Philae’s landing turned to concern as mission controllers learned more about Philae’s landing. It was supposed to fire several harpoons ...

It’s one of the most incredible space missions in recent memory. The European Space Agency has successfully landed a probe on a comet. ...

It has been more than a decade in the making. The European Space Agency’s spacecraft Rosetta met up with the comet known as 67P/Churyumov-Gerasimenko back ...