回答: 欧盟的一个太空飞行器将降落一颗彗星,科学意义何在? 由 sost 于 2014-11-12 6:42

这个任务2015年底结束，不知这“在未来许多年里，该彗星每6年绕太阳一圈，飞行器可对太阳系的许多方面进行观察也研究。”的结论如何得出？

Here are the key dates of the Rosetta mission:

Event	Nominal date
Launch	2 March 2004
First Earth gravity assist	4 March 2005
Mars gravity assist	25 February 2007
Second Earth gravity assist	13 November 2007
Asteroid Steins flyby	5 September 2008
Third Earth gravity assist	13 November 2009
Asteroid Lutetia flyby	10 July 2010
Enter deep space hibernation	8 June 2011
Exit deep space hibernation	20 January 2014
Rendezvous manoeuvres begin	7 May 2014
Arrive at comet	 6 August 2014
Start global mapping	10 September 2014
Lander delivery	12 November 2014
Perihelion passage	13 August 2015
End of mission	31 December 2015

http://sci.esa.int/rosetta/2279-summary/