A Comment About

Time to Head for Mars?

May 27, 2008 - 12:59 am - by Rand Simberg
Rand Simberg
2008-05-27 14:00:20

Sorry for the confusion. I was simply trying to convey how fast the probe was approaching (which is Mars escape velocity, for the reasons that Joe states). Technically, of course, it was only escape *speed* (scalar), not escape velocity (which is a vector), because escape velocity would require a vector pointing in some direction that didn’t impact the planet or its atmosphere…