On March 24, 1997, Hale-Bopp – described by one astronomer as looking like “a dirty snowball” – was visible in the night skies over Staten Island, even though the comet was about 122.2 ...

On March 8, ALMA spotted a pair of jets blasting out of the comet's nucleus – its solid icy core. Spectrometry revealed that ...

Had comet K2 PanSTARRS entered deep into the inner solar system like Hale-Bopp in the late 1990s, then we would be in for a truly spectacular show. Ironically, Hale-Bopp passed us about six months ...

The crews of both NASA’s Skylab 4 and the Soviet Union’s Soyuz 13 missions reported seeing it. ... Arizona, independently discovered Comet Hale-Bopp July 23, 1995.

NASA said it’s highly unlikely Tsuchinshan-ATLAS will be visible in daylight hours, except perhaps at twilight. In the past 300 years of astronomical observation, ... Comet Hale-Bopp in 1997.