A team of researchers from Puerto Rico detected some unusual radio signals in space. They suspect these signals are coming from a red dwarf star, situated pretty close to Earth, namely only 11 light-years away. This star has been dubbed Ross 128, and is known not to have any planetary system. This phenomenon is, indeed, mysterious, but astronomers doubt the possibility of it being produced by aliens.
Peculiar radio signals coming from a star
Astronomers from Arecibo Observatory first spotted some radio signals in April and May. They found out they came from several red dwarf stars, and decided to record and analyze them. After a thorough study, they observed an unusual dynamic in the signals emitted by Ross 128. These were not produced by any interferences with other radio signals, and were unique to the star.
As expected, this gave rise to many theories regarding intelligent life. However, astronomers disappoint us. They have several theories on the origin of these signals, and the alien hypothesis is placed at the bottom of the list.
Aliens are not a plausible explanation for the phenomenon
Two theories are the most likely to be true, and both of them involve other phenomena. The first one proposes the existence of a solar flare of Type II, which caused emission of radiation and then produced these signals. Another plausible explanation would be a high-orbit satellite.
However, the hypotheses don’t come without limitations. Such solar flares don’t usually occur at high frequencies. Also, for the signals to disperse, the star would have to be further away, or to be surrounded by a denser field of electrons. There are also no other objects surrounding Ross 128. Even if there were some, they could have never emitted such frequencies.
To clarify this debate, astronomers need more research. This is why they will be helped by scientists from Search for ExtraTerrestrial Life (SETI), who will use advanced telescope to study the star more thoroughly.
Image Source: Wikimedia Commons