Science News

Penn State University astronomers using the world's largest radio telescope, at Arecibo, Puerto Rico, have discovered flaring radio emissions from an ultra-cool star, not much warmer than the planet Jupiter, shattering the previous record for the lowest stellar temperature at which radio waves were detected.

Record-Breaking Radio Waves Discovered from Ultra-Cool Star-120430101054-large.jpg
An artist's impression which shows the relative sizes and colors of the Sun, a red dwarf (M-dwarf), a hotter brown dwarf (L-dwarf), a cool brown dwarf (T-dwarf) similar to J1047+21, and the planet Jupiter. (Credit: NASA/IPAC/R. Hurt (SSC))

Source: Science Daily