Israeli calculations helped ‘Spirit’ and ‘Opportunity’ rovers land on Mars ISRAEL21c

After the rovers ‘Spirit’ and ‘Opportunity’ landed on Mars in January 2004, international excitement was so great that NASA received over 6.5 billion hits on its website in less than two months. Helping the wildly popular Mars program get off the ground, so to speak, were some calculations of an Israeli scientist, Prof. Joseph Appelbaum of Tel Aviv University, along with colleagues at NASA.