United Kingdom, June 27 -- An astronomer claims to have figured out why aliens have yet to make contact with humans on earth.

In a study published in The Astrophysical Journal, the paper's first author, astronomer Vishal Gajjar, explained they think the "technological signals" being sent from extra terrestrial civilisations are potentially being affected by other "space weather".

Vishal explained: "If a signal gets broadened by its own star's environment, it can slip below our detection thresholds, even if it's there, potentially helping explain some of the radio silence we've seen in technosignature searches."

Another reason for the silence could be because astronomers and researchers are looking for the "wrong shape" signals.

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