NASA head Jared Isaacman recently confirmed that the space agency has taken images of objects that remain unknown, which could be classified as UFOs.

Isaacman, who began serving as NASA's chief administrator in December, said the imagery could not be explained.

"We have captured imagery - and this is what President Trump is very forward-leaning about - that, based on the data that we have within that imagery, we don't know what it is," he told podcast host Jack Gordon in a June 30 episode.