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Is it or isn’t it?

Comet ISON, I mean. It went whizzing around the Sun on (US) Thanksgiving, and fizzled, thus ending the hopes of amateur astronomers like me for a December show.

XKCD comic

Except it didn’t, quite.

This ESA/NASA Solar and Heliospheric Observatory timelapse image shows the bright comet heading in, and something heading back out. (Remember that a comet’s tail points away from the Sun no matter which way it’s going.)

soho_c3_timelapse_new_0

While it looks as if ISON won’t be visible, watching the science unfold over the past few days has been utterly fascinating. Most people don’t get to see data come in and science happen nearly real-time, being exposed only to the articles written after everything is known. This blog post especially highlights the joy and frustration.

Karl Battams writes there:

And I just want to end on this note: not long after comet ISON was discovered, it began to raise questions. Throughout this year, as many of you who have followed closely will appreciate, it has continued to confuse and surprise us. For the past few weeks, it has been particularly enigmatic and dynamic, in addition to being visually spectacular. This morning we thought it was dying, and hope was lost as it faded from sight. But like an icy phoenix, it has risen from the solar corona and – for a time at least – shines once more. This has unquestionably been the most extraordinary comet that Matthew and I, and likely many other astronomers, have ever witnessed. The universe is an amazing place and it has just amazed us again. This story isn’t over yet, so don’t stray too far from your computer for the next couple of days!

Phil Plait has done his usual good job summarizing the ups and downs and ups and downs of ISON-watching, with his post from yesterday offering video and analysis.

David Levy famously said, “Comets are like cats: they have tails, and they do precisely what they want.” Definitely.

Even through my disappointment, I’ve found the real-time science a lot of fun to watch: the data coming in, the changing interpretations, the frantic scientists trying to figure out what to say to the inquiring public. More science-fictional scientists should behave like this!