Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
CNN's Chad Myers has the details of an asteroid scientists say will narrowly miss hitting Earth in February.
You could easily skip by it in an archive search: a project titled "A Study of Lunar Research Flights." Its nickname is even more low-brow: "Project A-119."
But the reality was much more explosive.
It was a top-secret plan, developed by the U.S. Air Force, to look at the possibility of detonating a nuclear device on the moon.
by Dugald McConnell and Brian Todd
Watch "The Situation Room with Wolf Blitzer" Tuesday at 5pm on CNN for more of Brian Todd's interview with space jumper Felix Baumgartner.
(CNN) - He has been dubbed "Fearless Felix," but the Austrian skydiver who broke the sound barrier last week was almost derailed by a fear he had never before encountered: claustrophobia.
In a wide-ranging interview with The Situation Room's Brian Todd, Felix Baumgartner said that as he did longer and longer test runs, wearing his restrictive skydiving suit, his anxieties got worse and worse.
CNN's Jeanne Moos reports on Felix Baumgartner's leap that launched a thousand laughs.
CNN's Brian Todd looks at the future role for private companies is in high-altitude and space exploration.
Roswell, New Mexico (CNN) - Skydiver Felix Baumgartner is aiming to pull off a record-breaking free-fall jump from the edge of space Tuesday, wearing nothing but a space suit, a helmet and a parachute.
His goal is not only to jump from a higher altitude than anyone ever has - 120,000 feet, more than three times the cruising altitude of the average airliner. He also hopes to be the first person to break the sound barrier, without the aid of anything besides the space suit. At that altitude, the thin air provides so little resistance that after just 40 seconds, he is expected to be free-falling faster than 690 miles an hour.
CNN's John Zarrella reports on a man who's spent nearly two decades photographing Mars for us to see.
Mickey Mouse spotted on Mercury?! CNN's Jeanne Moos reports on an out-of-this-world sighting.
Filmed with infrared cameras, a highly secretive unmanned Air Force space plane lands after more than a year in orbit.