The name for a partner who is involved in a queerplatonic relationship, as in he's my zucchini.
Curiosity, a rover that's exploring Mars as of 2014, has a top ground speed of 1.5 inches per second, or about 0.1 mph. Curiosity landed on Mars on Aug. 5, 2012.
The shortest time at closest approach, given current rocket propulsion, is about 7 to 8 months. This is the estimated transit time for the Mars probe of December, 2011. It is possible to get there faster using more powerful rockets, but this would only reduce the time to 2 months at best (48 days at 30,000 mph).