Another interesting aspect of the landing, if it works, is the lander has to attached itself to the comet with ice screws because the gravity is so slight. An average human male would weigh about 1/4 ounce or about 7 grams on the comet. The orbiter and the lander will ride with the comet as it approaches the Sun and the cometary tail begins to form. This way the craft can photograph and measure the out-gassing of volitiles.
---In FairfieldLife@yahoogroups.com, <no_re...@yahoogroups.com> wrote : Taken by the Rosetta orbiter, the lander Philae on its way to land on a comet 510,000,000 km away out beyond Mars. r,