Ken Farley, the project scientist for NASA's next Mars rover, a mission called Mars 2020, and the W.M. Keck Foundation Professor of Geochemistry at Caltech, talks about how the Mars 2020 landing site selection process is shaping up.
NASA participated for the first time in Norway's annual oil spill cleanup exercise in the North Sea on June 8 through 11. Scientists flew a specialized NASA airborne instrument to monitor a controlled release of oil into the sea.
Feynman Teaching Award winner Mike Brown ventures into new fields of instruction: the Massive Open Online Course, or MOOC, and the "flipped" classroom, which inverts the traditional arrangement of listening to lectures in class and doing assignments at home.
Taking advantage of airborne radar tools, Caltech researchers provide two possible explanations for a series of unusual earthquakes seen in Iceland during a period of volcanic activity that started in August last year.