Victoria Crater (IMAGE) University of Chicago Caption An orbital view of Victoria Crater on Mars, showing the path of the Opportunity rover along the north rim. Mars rover scientists have launched a new long-term study on the Martian atmosphere with the Alpha Particle X-ray Spectrometer, an instrument that was originally developed at the University of Chicago. This orbital view was acquired by the High-Resolution Imaging Science Experiment camera on the Mars Reconnaissance Orbiter. Credit Image courtesy of NASA/JPL-Caltech/UofA/USGS Usage Restrictions This image may be used in connection with news reports about the research described in the news release above. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.