What could it be?

“The emission seen from

Ross 128 is likely caused by an Earthorbiting satellite. Anthropogenic radio frequency interference (or RFI for short) is one of our biggest challenges in radio searches for extraterrestrial intelligence.”

Andrew Siemion, Berkeley SETI Research Center

“The best explanation is that the signals are transmissions from one or more geostationary satellites. This explains why the signals were within the satellite’s frequencies and only appeared and persisted for Ross 128.”

Abel Méndez, University of Puerto Rico

“Radial interference had appeared on the same frequencies in at least two other stars. Either the three stars had agreed to produce strange signals that night or simply what we were seeing was a product of radial interference (possibly produced by satellites).” Jorge Zuluaga, University of Antioquia