Comet ISON – Comet ISON appears as a white smear heading up and away from the sun on Thursday, November 28. Scientists initially thought the comet had been disintegrated by the sun, but images suggest a small nucleus may still be intact.
Comet ISON – Comet ISON is seen, top left, after its close encounter with the sun on November 28. In this picture, called a coronagraph, the bright light of the sun is blocked so the structures around it are visible.
Comet ISON – Comet ISON moves close to the sun at 10:51 a.m. ET on November 28.
Comet ISON – Comet ISON's position is seen near the sun at 9:30 a.m. ET on November 28. This composite image comes from NASA and the European Space Agency.
Comet ISON – Comet ISON is seen early on Wednesday, November 27.
Comet ISON – Comet ISON shines brightly on the morning of November 19. The comet was discovered by Russian astronomers Vitali Nevski and Artyom Novichonok in September 2012. It was named after their night-sky survey program, the International Scientific Optical Network.