Phil Christensen
Phil Christensen
Philip Russel Christensen is a geologist whose research interests focus on the composition, physical properties, processes, and morphology of planetary surfaces, with an emphasis on Mars and the Earth. He is currently a Regents' Professor and the Ed and Helen Korrick Professor of Geological Sciences at Arizona State University...
begin biggest coming dust early heading mars months season spell storms until
The biggest dust storms don't usually begin until one or two months after perihelion, ... This one coming so early in the season makes me think Mars is heading for a spell of big dust storms.
step studies time
The time has come to take Martian studies a step further?and deeper.
climate mars models orbit predict spin tilt
The climate models predict that as the orbit of Mars evolves, the tilt of its spin axis changes.
call mother
We call them the mother lode of hematite,