Humans on Mars: Scouting Needed for Red Planet Resources

NASA's quest to put boots on Mars in the 2030s is advancing, bolstered by new studies about a multifunction, next-generation Mars orbiter and the best ways to use Red Planet resources to sustain astronaut pioneers. For example, any favored exploration zone should allow expeditionary crews to tap into at least 100 metric tons (110 U.S. tons) of water, NASA officials have said. With its suite of instruments and cameras — particularly the sharp-shooting High Resolution Imaging Science Experim