NASA's Comet-Chasing Deep Impact Mission Is No More

An artist’s concept of the Deep Impact spacecraft flying past a comet. Image Credit: NASA/JPL/UMD/Pat Rawlings

Nine years ago NASA launched a spacecraft to do something that had never been done at any point in recorded history: to visit a comet and punch a hole in its face to investigate the surface and […]

NASA to Chronicle Earth Flyby of Asteroid 2012 DA14

Diagram showing today’s passage of 2012 DA14 through the Earth-Moon system. The celestial visitor will make a closest approach of around 17,150 miles, bringing it within the sphere of the orbits of geosynchronous satellites. Image Credit: NASA

Move over, Bruce Willis. Your asteroid-pulverizing, Home Planet–saving career might not be ready for a resurgence […]

Does Asteroid 2012 DA14 Spell Armageddon? NASA Says, 'Not So Much' ...

An asteroid will make a very close approach to Earth on Feb. 15, and NASA is preparing for the encounter. Image Credit: Jeff Darling

An asteroid is barreling toward Earth! But no worries … there’s no need to get Bruce Willis into a space shuttle and have him save us with a nuclear […]