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News From the Field
Red Giant Star Betelgeuse is Mysteriously Shrinking

June 9, 2009

Infrared Spatial Interferometer telescopes The red supergiant star Betelgeuse, which is so large it would extend to Jupiter's orbit in our solar system, has steadily shrunk over the past 15 years, according to University of California, Berkeley, physicists. Since 1993, its radius has gone down by 15 percent, equivalent to the radius of Venus's orbit. This conclusion comes from unique laser interferometer observations by laser inventor and Nobel Laureate Charles Townes and his colleague, Edward Wishow. Full Story

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University of California, Berkeley

The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2015, its budget is $7.3 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives about 48,000 competitive proposals for funding, and makes about 11,000 new funding awards. NSF also awards about $626 million in professional and service contracts yearly.

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