Former NASA astronaut Dr. Leroy Chiao has been to space three times and been flying planes for 40 years -- but never saw anything like this before.

Former NASA astronaut Leroy Chiao may have commanded a real-life space station, but "Star Trek" gave him an early push.

Dr. Leroy Chiao claims to have spotted two metallic orbs while flying a private plane from Colorado to Houston, Texas. cdrleroychiao/Instagram “That was in August, I was flying back from ...

Leroy has been flying small planes since 1984 and bought the plane he still flies today back in 1999.© Photo Courtesy of Dr. Leroy Chiao.

Leroy Chiao, AstroCritic, is a former NASA astronaut and commander of the International Space Station. During his 15-year flying career, he performed six spacewalks and spent nearly 230 days in ...

Leroy Chiao: Data found on moons of Saturn and Jupiter affirm my belief that humans are not alone in the universe. But we likely will never encounter other intelligent life.

Kendis Gibson and Leroy Chiao usher in a new era of space travel as the Inspiration4 crew completed their three day journey to outer space where they conducted research and raised more than $200 ...

With a series of UFO sightings making waves across the US, former NASA astronaut Leroy Chiao recalled a chilling encounter with two mysterious objects while flying his private plane last summer in ...

Former International Space Station commander and NASA astronaut Leroy Chiao visits Wollongong to share his experiences in zero gravity, discuss whether aliens exist, and show how the Illawarra is ...

The implosion of the Titan submersible and the rise in commercial space company tourism raises questions about balancing curiosity with due diligence, writes former NASA astronaut Leroy Chiao.

Former astronaut and International Space Station Commander, Leroy Chiao, joined Stephanie Ruhle to respond to the historic news.