Comet-Chaser Rosetta Ready For Launch
Karl Kennedy writes "Europe's Rosetta space mission, which aims to chase and then land on a comet, is standing by for lift-off in French Guiana.
Once up in space, Rosetta will be placed in orbit around Earth before departing for the outer Solar System. In 2014, Rosetta will reach the comet and deliver a lander to its surface. The probe will perform three close fly-bys of the Earth and one of Mars in "slingshot" manoeuvres that will use the planets' gravity to help the probe build up speed."
The language barrier between earth and comets will be bridged by the Rosetta probe. Now, instead of harsher measures, we can talk a comet out of hitting us...
If it's flying around the solar system for 10 years until it meets it's comet destiny, it should make a pretty interesting interim astronomy platform. Then if it somehow crashes into the comet or dies en route it won't be a wasted mission.
10 years is an awfully long time- lots of stuff could go wrong
IMHO this is ESA's biggest challenge thusfar. 10 years is a very long time to wait for results of your mission... This flash animation shows Rosetta's long journey. This mission is even more awe inspiring than Stardust or Deep Impact.
karma capped
Energy and momentum are conserved. A slingshot slows down the planet by a tiny bit (just like you move the Earth when you jump in the air). The speed at which you leave the planet isn't any faster relative to the planet, but since the planet itself is moving, your speed relative to what you're aiming at can be increased.
The NEAR spacecraft landed on the asteroid Eros over 3 years ago. Eros is rather eccentric, spinning, and small by our usual standards.
Time is Nature's way of keeping everything from happening at once... the bitch.