Politicians will be grilling experts about UFOs and say they want to make sure the public is better informed on mysterious sightings... and what they might be.

The House Oversight Committee heard testimony Wednesday from a number of witnesses about their experience with unidentified anomalous phenomena (UAPs) — or UFOs. It marked the first congressional hearing on UAPs since last year,

More than a year has passed since U.S. House members last heard testimony about UFOs and what the Department of Defense may be concealing about them.

A similar hearing last year brought extraordinary moments, including a retired intelligence officer alleging that the U.S. government has recovered nonhuman "biologics" from crash sites.

Congress will hold its second hearing in two years aimed at gathering testimony about alleged UFO retrieval programs and the U.S. government's attempt to hide them.