Scientists have placed high-tech "spiders" inside and around the mouth of Mount St. Helens, the site of the most active volcano in the United States.
NASA satellites do some really cool things, like take a sideways look at a slice of a tropical depression -- that's what CloudSat did with Lana in the Central Pacific.
A false-color image of Earth was taken by the Moon Mineralogy Mapper, one of two NASA instruments onboard the Indian Space Research Organization's Chandrayaan-1 spacecraft.