The space snowman that was the focus of a close encounter with NASA's New Horizons probe last year is helping scientists answer a cosmic question: How did the building blocks of the solar system get their start?
"This is a game-changer," said Alan Stern, a planetary scientist at the Southwest Research Institute and principal investigator for the New Horizons mission.
NASA says it'll take applications for its next class of astronauts between March 2 and 31 — the first step in what's expected to be a yearlong selection process.
To start the process, would-be spacefliers should click into USAJobs.com next month. For the first time in NASA history, applicants will be required to fill out a detailed online assessment that could take as long as two hours to complete.