The landing-site specialist

(PhysOrg.com) -- Gale crater has been sitting just below the equator of Mars, minding its own business, for at least three and half billion years. But in August 2012, a capsule is going to come screaming out of the sky, then ...

Dawn spacecraft returns close-up image of asteroid Vesta

(PhysOrg.com) -- NASA's Dawn spacecraft has returned the first close-up image after beginning its orbit around the giant asteroid Vesta. On Friday, July 15, Dawn became the first probe to enter orbit around an object in the ...

At the heart of Hartley-2, a new breed of comet?

(PhysOrg.com) -- At the heart of every comet lies a remnant of the dawn of the solar system. Or is that remnants? Astronomers don't know, but the answer would give them a clearer picture of exactly how comets were born eons ...

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