Research NewsAstronomy

Last Hurrah for an Infrared Satellite

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Science  01 May 1998:
Vol. 280, Issue 5364, pp. 678
DOI: 10.1126/science.280.5364.678

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Early last month, the European Infrared Space Observatory (ISO) ran out of coolant and had to quit its measurements of the feeble heat radiation from the rest of the universe; in mid-May, it will be shut down for good. ISO lived for 10 months beyond its expected 18-month lifetime, collected more than 26,000 observations from Earth's astronomical backyard to the far reaches of the universe, and made several important findings during its final days.