You can watch the comet's passage live online.
One of the farthest active comets ever spotted makes its closest approach to Earth today, July 14, and you can catch the action live online.
Viewers will be able to watch the comet's passage online by tuning into the Virtual Telescope Project's live webcast , beginning at 6:15 p.m. on July 14. You'll also be able to watch on Space.com, courtesy of the Virtual Telescope Project. Over the last five years, K2 has been steadily moving toward Earth. Comets, which are made of mostly frozen gases, rock and dust, become active as they approach the sun; the warmth of the sun heats the comet very quickly, causing its solid ice to turn directly into gas and form a cloud around the comet known as the coma.
Initial observations showed the comet had a large nucleus and a massive coma. While the Canada–France–Hawaii Telescope suggested K2's nucleus could be between 18 and 100 miles wide, data from the Hubble Space Telescope indicated it might be only 11 miles wide, EarthSky wrote. — Amazing photos of Comet NEOWISE from the Earth and space Therefore, the comet's upcoming close approach offers a good opportunity for professional observatories to measure just how big the nucleus really is.
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