How green is your telescope?

A promiment scientist at the University of Texas in Austin has pulled out of a major telescope project, SOFIA, because of his concerns about the environmental impact of the mission.  Prof. John Lacy felt he couldn’t support a project that excessivly harms the environment. SOFIA, the Stratospheric Observatory for Infrared Astronomy, is a 2.5 m telescope that will fly high above the Earth’s surface on board a modified Boeing 747SP plane. Due for first (f)light in 2010, SOFIA will be able to detect radiation from mid-infrared to submillimetre wavelengths. Light at these energies is abosorbed by water molecules in the atmosphere, and by flying the telescope on a plane above much of the absorbing gas scientists can avoid those losses without having to launch a satellite into space, which is costly and difficult to upgrade or fix. The SOFIA plane is expected to fly four times a week, for up to 12 hours a time – so it’s easy to understand Lacy’s concerns.

The Texas media found out about Lacy’s withdrawal from the US-German project and ran a story about it – read it here.

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