Sizes for potentially dangerous asteroids

Near Earth Objects (NEOs) are asteroids or comets whose orbits sometimes take them close to the earth's orbit. An NEO could therefore someday collide with the earth -- and there are almost 7000 of them known, with several ...

Small Near-Earth Object Probably a Rocket Part

(PhysOrg.com) -- Scientists at NASA's Near-Earth Object Program Office at NASA's Jet Propulsion Laboratory in Pasadena, Calif., have determined that a small object that safely passed Earth on May 21 is more than likely an ...

Obama's asteroid goal: tougher, riskier than moon

(AP) -- Landing a man on the moon was a towering achievement. Now the president has given NASA an even harder job, one with a certain Hollywood quality: sending astronauts to an asteroid, a giant speeding rock, just 15 years ...

10 years preparing for 'Armageddon'

It's a scenario made famous by the 1998 film "Armageddon": an asteroid is spotted on a collision course with Earth, and experts scramble to plan a space mission to rendezvous with the asteroid and mitigate the danger. It's ...

page 5 from 8