The Lunar Xprize challenge isn't just meant to reward the first team that lands a private rover on the Moon -- it's there to give some encouragement along the way, too. Accordingly, Google and Xprize have just handed out a total of $5.25 million to five competitors for hitting milestones in imaging, mobility and landing technology. Astrobotic Technology is the big winner, having scooped up $1.75 million across all three areas. Not that the others are exactly hurting. Hakuto, Moon Express, Part-Time Scientists and Team Indus all snagged between $500,000 to $1.25 million each.