Dude, where’s my comet?
Comet ISON, which was due to emerge from behind the Sun today, has failed to appear, indicating that the comet…
Hubble snaps pic of faraway comet ISON
Hubble has given astronomers their clearest view yet of ISON, a newly-discovered sun-grazer comet that could light up the sky…
Strong evidence for liquid water in comet
The idea that comets are “dirty snowballs” frozen in time looks set for revision now that scientists have found evidence…