It has long been assumed that the gases of a comet tail are pushed away from the comet by the pressure of light from the sun. It now appears that many tails are caused by a wind of charged ...

Within this comet, digital health literacy finds its place in the particles of that tail, in that bright reflection that makes digital health visible, comprehensible and accessible. Moving away ...

Lighter particles form the comet’s tail while heavier ones fall back on to its surface, building a crust. That time a car-sized asteroid flew near Earth and scientists didn’t know Observing ...

Frost at the Yerkes Observatory saw the comets nucleus as bright as Regulus, the chief star in the Sickle with a tail 5 or 6 degrees in length. Under slightly more favorable circumstances ...

The "once-in-a-lifetime" comet Tsuchinshan-ATLAS looks like it has grown a physics-defying second tail after reaching its closest point to Earth for more than 80,000 years, new photos reveal.

And high above, comet Hale-Bopp hung suspended like a feathery fishing lure, its tail curving off a bit, as if blown to the side by the punishing wind. One by one, stars winked on in a darkening sky.

Here they have been reprocessed for a larger display. The photo of Comet Hyakutake (left) was taken in March 1996, on the night of its closest approach to earth. That night it was a brilliant fuzzball ...

The boiling is so intense, that the world has developed a comet-like tail stretching 350,000 miles behind it, scientists announced on Tuesday. Don't retire on this planet The planet, called WASP ...