Neil deGrasse Tyson challenges recent UAP disclosures, urging officials to provide concrete evidence of extraterrestrial life, highlighting the gap between transparency claims and actual proof.

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House scientific advisory council on UFOs.

Harvard astrophysicist Avi Loeb will head the UAP Science Advisory Council established by the White House, the Pentagon, the ...