Ask a Rosetta Scientist About Crashing a Spacecraft Into a Comet
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Ask a Rosetta Scientist About Crashing a Spacecraft Into a Comet
Rosetta catches a glimpse of 67P this Spring, from further back (Image: ESA )

After a twelve year journey in space, the Rosetta spacecraft has less than 24 hours of life left before it crashes straight into the comet it has been orbiting. Today at 3 p.m., Rosetta mission scientist Paul Weissman will be here taking your questions live.

Rosetta was originally launched by the ESA back in 2004. It was only after a journey of ten years that it finally arrived at Comet Churyumov-Gerasimenko and attempted a daring touchdown by the spacecraft's accompanying lander, Philae. Some unexpected bounces meant that Philae was almost lost in space-but it managed to hang on and send back data before we lost touch. Now, as Rosetta prepares to join it on the surface of Comet 67P -this time, though, with a crash-ESA scientists are looking at the end of a more than decades-long mission that has revealed more about comets than perhaps any other mission .

In addition to his work as a scientist for ESA's Rosetta team, Weissman is also a senior scientist at the Planetary Science Institute in Pasadena, California, where he focuses on the evolution of comets. He'll be joining us here live at 3 p.m. EDT to answer your questions. So start dropping your questions-about comets, the final images we'll see as Rosetta prepares to die, the bouncing Philae lander and anything else you want to know-right now.