Field Testing of a Portable Instrument (IMAGE) NASA/Goddard Space Flight Center Caption Field testing of a portable instrument to monitor carbon dioxide and methane in the atmosphere is under way on the Mauna Loa volcano. Developed by NASA's Goddard Space Flight Center, the mini-LHR instrument, or miniaturized laser heterodyne radiometer, is being tested in partnership with the six-person crew that's living in the habitat called HI-SEAS. Credit NASA's Goddard Space Flight Center/HI-SEAS Usage Restrictions None 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.