... A Telescopic View of Erupting Comet Holmes . ... 29.10.2007 . ... A normally docile comet discovered over 100 years ago, Comet 17P/Holmes suddenly became nearly one million times brighter last week, possibly over just a few hours. ... Comet Holmes had already passed its closest to the Sun in 2007 May outside the orbit of Mars and was heading back out near Jupiter's orbit when the outburst occurred. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: comet . ...