Opportunity

NASA’s senior Mars rover, Opportunity, is examining rocks at the edge of Endeavour Crater for signs that they may have been either transported by a flood or eroded in place by wind.

With all the fanfare about Mars rover Curiosity landing safely on the Red Planet on Aug. 6, it’s easy to forget that there’s already a rover on Mars — an older, smaller cousin set to accomplish a feat unprecedented in the history of Solar System exploration. WUSTL’s Raymond E. Arvidson is playing key roles in both Mars missions.

The Mars rover Opportunity, which was designed to operate for three months and to rove less than a mile, has now journeyed more than seven years crossing more than 21 miles. Today, it is poised at the edge of a heavily eroded impact basin, the possible location of clay minerals formed in low-acid wet conditions on the red planet.

Andrew H. Knoll, Ph.D., Fisher Professor of Natural History and professor of earth and planetary sciences at Harvard University, will discuss the evidence for life on Mars at 7 p.m. Oct. 30 in Room 300, Laboratory Sciences Building, on the Danforth Campus of Washington University in St. Louis.

NASA/JPL-Caltech/Univ. of Arizona.Polar layered deposits exposed in a scarp at the head of Chasma Boreale, a large canyon on Mars.Mars climate history, recorded in ice-rich deposits near the poles, on crater-wall cliffs and ancient sand dunes, is being revealed by a trio of NASA instruments now flying over and rolling across the planet, suggest Washington University in St. Louis researchers playing key roles in the mission.

Bill Nye will explore how the latest scientific advancements relate to social policy at 11 a.m. September 13 in Graham Chapel as part of the Assembly Series.

Bill Nye will share his infectious enthusiasm for science and explore how the latest scientific advancements relate to social policy at 11 a.m., September 13, in Graham Chapel as part of the Assembly Series.

Alian Wang in the laboratoryA large team of NASA scientists, led by earth and planetary scientists at Washington University in St. Louis, details the first solid set of evidence for water having existed on Mars at the Gusev crater, exploration site of the rover Spirit.