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Geostationary Satellites Likely to Blame for Mysterious Ross 128 Signal

Accepted submission by takyon at 2017-07-22 11:00:00
Science

The mundane explanation for an apparent signal detection in the vicinity of Ross 128 is backed by an analysis of the Arecibo Observatory's data [space.com]:

A strange radio signal that seemed to emanate from a small nearby star probably came from Earth-orbiting satellites, astronomers say. Late last week, researchers announced that, on May 12, the 1,000-foot-wide (305 meters) Arecibo radio telescope in Puerto Rico detected a bizarre radio signal [space.com] in the vicinity of Ross 128, a red dwarf star that lies just 11 light-years from Earth.

[...] "The best explanation is that the signals are transmissions from one or more geostationary satellites," Abel Mendez, director of the Planetary Habitability Laboratory at the University of Puerto Rico, wrote in a statement [upr.edu] today (July 21). (Geostationary satellites circle Earth at an altitude of about 22,300 miles, or 35,800 kilometers.)

"This explains why the signals were within the satellite's frequencies and only appeared and persisted in Ross 128; the star is close to the celestial equator, where many geostationary satellites are placed," Mendez added. "This fact, though, does not yet explain the strong dispersion-like features of the signals (diagonal lines in the figure); however, it is possible that multiple reflections caused these distortions, but we will need more time to explore this and other possibilities."

There is no news signal in this submission.

Also at CNET [cnet.com] and The Verge [theverge.com].

Previously: Strange Signals From the Nearby Red Dwarf Star Ross 128 [soylentnews.org]


Original Submission