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Latest Cathy Weitz Stories

2008-09-27 09:00:17

By AARON MACKEY Mars may have had water coursing through its red soil for a billion years longer than scientists previously had thought, increasing the possibility that the planet could have supported life, research conducted by a Tucson-based institute shows. Using high-resolution images from a camera developed at the University of Arizona, researchers with the Planetary Science Institute examined soil deposits on plains that surround a vast canyon network that runs around the planet's...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'