The first close-up images of Comet Borrelly - a visitor from the cold and dark Kuiper Belt beyond the planets - confirm that its nucleus is long, dark, mottled and dry. Borrelly's nucleus is only the ...

Deep Space 1's risky encounter with comet Borrelly has gone extremely well as the aging spacecraft successfully passed within 2,200 kilometers (about 1,400 miles) of the comet. Deep Space 1's risky ...

The first clear and close-up photos ever taken of a comet have scientists rewriting much of what they thought they knew about the common and often dazzling objects that transit our solar system. “It’s ...

An aging spacecraft so wounded that engineers said it was flying only on “duct tape and good wishes” defied odds over the weekend to complete a risky fly-by of the speeding comet Borrelly. NASA’s Deep ...

Operating on a makeshift navigation system and performing an extra mission assigned on the fly, NASA’s Deep Space 1 probe (DS1) has executed a stunning rendezvous with a comet. The probe passed within ...

Comets are sometimes described as "dirty snowballs," but a close flyby of one by NASA's Deep Space 1 spacecraft last fall detected no frozen water on its surface. Comet Borrelly has plenty of ice ...

The American space agency, Nasa, has published astonishing pictures of Comet Borrelly's nucleus, taken by the unmanned spacecraft Deep Space 1. The mission's director, Dr Marc Rayman, has himself ...

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