Judges questioned the extent to which courts have the power to second-guess the president's invocation of the 18th-century law.

If aliens disclose tomorrow, is it 'Arrival''s calm contact, 'Don't Look Up''s denial, or 'Independence Day''s invasion? We break down the real scenarios fans are debating.

It is considered one of the most famous UFO encounters in history. A US sergeant said a UFO beamed a binary coded message ...