Astronaut John H. Glenn, Jr., wearing a Mercury pressure suit, was the pilot of the Mercury-Atlas 6 (MA-6) mission. Glenn made America's first manned Earth-orbital space flight on Feb. 20, 1962.

UFO hunters believe this month's reappearance of ‘fireflies' on NASA Helioviewer footage - a phenomena first reported by astronaut John Glenn in 1962 - is actually evidence of alien life.

NBC News' Jay Barbree tells the story behind John Glenn's Project Mercury spaceflight in 1962 ... and behind the mysterious "fireflies" he saw while he orbited the earth.

Former astronaut and U.S. Senator John Glenn has died at the age of 95. Hank Wilson with the John Glenn School of Public Affairs says Glenn died Thursday afternoon at the James Cancer Hospital in ...

Fifty years ago, American scientists and engineers couldn’t know for sure what effect an orbital spaceflight would have on American astronaut Col. John H. Glenn. The Soviets already had orbited ...

Astronaut John H. Glenn Jr., pilot of the Mercury Atlas 6 (MA-6) spaceflight, poses for a photo with the Mercury "Friendship 7" spacecraft during preflight activities at the Kennedy Space Center ...

Astronaut John Glenn died on Dec. 8 at 95. ... were literally thousands of tiny luminous objects that glowed in the black sky like fireflies. I was riding slowly through them, ...