Lunar Meteor StrikeThis artist's rendering of a small but powerful meteor strike on the surface of the moon demonstrates a key concern for future lunar explorers -- mitigating potential risks from impact "ejecta," or the spray of debris that follows an impact, unimpeded by gravity or atmosphere. NASA astronomers are studying lunar impacts to help safeguard future missions to Earth's nearest celestial neighbor. (NASA/MSFC)
Mark W. Kaelin has been writing and editing stories about the IT industry, gadgets, finance, accounting, and tech-life for more than 25 years. Most recently, he has been a regular contributor to BreakingModern.com, aNewDomain.net, and TechRepublic.