If you think scientists are nerdy, wait until you see how they geeked-out over their success at landing a robot on a comet Wednesday.
CNN's Jeanne Moos has the comic side of making history on a comet.
Less than a week after Virgin Galactic's SpaceShipTwo disintegrated high above California's Mojave desert, technicians are reportedly already back at work building a second SpaceShipTwo in hopes of resuming test flights as early as next summer.
It's a quick turnaround considering so many unknowns remain, including what exactly caused the crash, as well as the mystery of how one of the two pilots managed to survive a disaster that unraveled at the speed of sound, 50,000 feet in the air.
CNN's Dan Simon has more.
A pilot is dead and another is injured after a Virgin Galactic spaceship exploded in midair during a test flight over the Mojave Desert in California today.
In a statement, Virgin Galactic said Space Ship Two "suffered a serious anomaly resulting in the loss of the vehicle." It is a devastating setback for the company and its founder Sir Richard Branson.
Space Ship Two cost nearly half a billion dollars to develop. More than 700 people have already signed up to fly on a Virgin Galactic spaceship, at more than $250-thousand dollars a ticket.
Virgin Galactic is considered by many to be the best hope in private space exploration. Prior to Friday's tragedy, they were hoping to start flights within months.
CNN's Dan Simon is OutFront with the story.