Space aliens could be alerting humanity of their existence. Two astronomers claim that they have evidence to prove that extraterrestrial life is trying to communicate to Earth and humans through strange messages from stars.

The astronomers' paper titled “Discovery of peculiar periodic spectral modulations in a small fraction of solar type stars,” which was published in the journal Publications of the Astronomical Society of the Pacific, explains how "periodic spectral modulations" from 234 stars could be "generated by Extraterrestrial Intelligence."

The study says that these stars, out of the 2.5 million stars in the Sloan Digital Sky Survey, produce strobe-like bursts that are of the same shape with signals written in a previous publication about the same topic.

“The fact that they are only found in a very small fraction of stars within a narrow spectral range centered near the spectral type of the sun is also in agreement with the ETI hypothesis,” said authors E.F. Borra and E. Trottier via Tech Crunch. “Although unlikely, there is also a possibility that the signals are due to highly peculiar chemical compositions in a small fraction of galactic halo stars."

However, not everyone is buying the idea of aliens contacting humans from space through weird messages from stars. In fact, the study has been declined to be published multiple times.

The authors are standing behind their hypothesis but say that further study is needed to prove their claim.

"I am quite skeptical, in particular of the data processing that can take spectrally sampled data, and infer time variations. So I’d be a little careful,” said the authors. “This is a complex and highly speculative issue and we shall not delve on it."