Scientists chased a falling spacecraft with a plane to understand satellite air pollution

A dramatic aircraft chase of a falling spacecraft has provided new insights into the fiery processes that accompany the atmospheric demise of retired satellites. The measurements will help scientists better understand how satellite air pollution affects Earth's atmosphere. In early September last year, a team of European scientists boarded a rented business jet on Easter Island to trace the atmospheric reentry of Salsa, one of the European Space Agency's (ESA) four identical Cluster satellites. The aircraft was fitted with 26 cameras to capture the brief occurrence in different wavelengths of light. More

(Source: Space.com - May 6)