Top US military officials have said recent UFO sightings could be alien space probes sent to earth from a giant ‘mothership’.

A Pentagon official, Sean Kirkpatrick, in charge of the secretive military unit tasked with studying unidentified flying objects (UFOs) made the claims in a recent paper.

Mr Kirkpatrick heads up the Pentagon’s All-domain Anomaly Resolution Office (AARO) set up to study reported UFO sightings.

The office was only established last summer but has already received hundreds of reports of unidentified anomalous phenomena (UAPs) - the new government name for UFOs - including from the US Air Force.

In the draft paper, co-authored by Harvard professor Avi Loeb, the pair claim that in recently-reported sightings of UFOs, the objects, which appear to defy all physics, could be “probes” from an extra-terrestrial “parent craft”.

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