On Thanksgiving Day in 2013, a comet named Comet ISON had an encounter with the sun becoming one of the most talked about space event of the 21st century.

Looks like Comet ISON may have what it takes to take a licking and keep on ticking. A new study by scientists at the Lowell Observatory and Southwest Research Institute (SwRI) indicates that Comet ...

NASA brought the big gun to bear on our lost comet. On December 18, the Hubble Space Telescope slewed to Comet ISON's expected position and found nothing down to magnitude 25. That's 100 million times ...

STOCKHOLM | A comet that gained an earthly following because of its bright tail visible from space was initially declared dead after essentially grazing the sun. Now, there is a silver of hope that ...

In a reversal that would make a comic book writer blush, scientists seem ready to resurrect Comet ISON after its untimely Thanksgiving demise. Over the holidays, NASA brought leading astronomers ...

If the comet ISON makes it out intact from its encounter with the Sun this week, the Earth is in for a potentially dazzling sight in the December night skies as it passes close to Earth and out ...

A potentially bright comet will be visible  in November and December. Russian amateur astronomers Vitali Nevski and Artyom Novichonok found the comet in images taken by the International Scientific ...

Lowell Observatory astronomer Matt Knight had good news this morning for the team assembled by NASA on Kitt Peak to observe Comet ISON: "ISON has brightened by a factor of four in the last 12 hours or ...