from examiner: What could be the most ambitious Mars mission in history could be doomed to failure within 24 hours thanks to a faulty rocket thruster that was designed to propel the Russian Phobos-Grunt probe to the Red Planet. Now, two weeks after a rocket stage failed to activate, Phobos-Grunt finds itself stuck in Earth’s orbit, with potentially no way out, no way to make a controlled re-entry, and not much time left, either.