Aug 5, 2014 — The European Rosetta mission arrives at its target comet Wednesday morning. In the coming months, its lander unit will harpoon the space rock.
Aug 4, 2014 — The European Space Agency's Rosetta Mission has taken the long way to reach Comet 67/P. Later this week, it will finally arrive.
Jul 10, 2014 — A team of volunteer space cowboys may have to say goodbye to ISEE-3 and to their dream of reviving for a final mission the creaky, 36-year-old hardware. Failed tests Wednesday suggest a fuel problem.
Jan 20, 2014 — The European comet-chaser has been in hibernation for nearly three years in an effort to conserve power. It is due for an August rendezvous with 67P/Churyumov-Gerasimenko.
Dec 11, 2013 — The European Space Agency's probe has spent the last decade doing flybys of Earth and Mars to match comet 67P/Churyumov-Gerasimenko's speed.
Dec 3, 2013 — Imagine stepping into an elevator and bumping into your greatest hero. What would you say? Commentator Adam Frank had this happen with one of the 20th century's greatest astronomers, a seer of sorts.
Dec 2, 2013 — There were hopes over the weekend that ISON might have survived its close encounter with the sun. But "with more than a little sadness," the space agency says, "we have to declare the comet lost."
Nov 25, 2013 — Once again, there's talk about a possible "comet of the century." Will ISON be a thriller or a dud? It's due to whiz by the sun on Thanksgiving Day. If it holds itself together after that, the comet could put on a stellar show in December.
Aug 22, 2013 — NASA says the small object that was caught on video by a spacecraft called the Solar and Heliospheric Observatory was most likely a member of a sun-grazing group of comets known as the Kreutz family.
Mar 15, 2013 — The comet's now putting on a show in the Northern Hemisphere's night sky. Using its orbiting observatories, NASA captured a stereo view from space that offers a unique perspective.