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Planetary Radio: Comet ISON, Rest in Pieces

Mat Kaplan • December 10, 2013 • 1

Karl Battams of NASA's Comet ISON Observing Campaign is our guest on this week's show. He explains how ISON really did become the comet of the century for scientists.

Comet ISON Wrap Up

Bruce Betts • December 05, 2013

Comet ISON captivated our world, and many of our world’s robotic emissaries for many months. But, alas, poor ISON is dead -- again. Here I wrap up our enthusiastic coverage of this multi-morphing zombie comet that tried to survive and re-survive as it came within one solar diameter of the Sun.

Comet ISON live blog

Emily Lakdawalla and Bruce Betts • December 05, 2013 • 10

Comet ISON reached perihelion at 18:25 UT (10:25 PT) on November 28. It's an event that's was watched around the world, accompanied by tons of commentary and streams of photos. We will update this blog entry periodically with links to all the resources that we hear of for following the comet's progress.

Multiple views of comet ISON from solar-observing spacecraft

Emily Lakdawalla • December 02, 2013 • 6

When comet ISON passed through perihelion last week, solar observing spacecraft had a ringside view. Here are several animations of ISON's perilous passage from the SOHO and two STEREO spacecraft.

Comet ISON Hangouts November 25 and December 2

Emily Lakdawalla • December 02, 2013 • 3

Two Hangouts bookended comet ISON's perihelion, hosted by Chuck Beuter of Comet Festival South Bend. On November 25, it was I and Ron Kaitchuck. On December 2, Alex Filippenko and I discussed what happened to the comet over Thanksgiving.

Schrödinger's Comet

Karl Battams • November 28, 2013 • 9

After impressing us yesterday, comet ISON faded dramatically overnight, and left us with a comet with no apparent nucleus in the SOHO/LASCO C2 images. As the comet plunged through the solar atmosphere, and failed to put on a show in the SDO images, we understandably concluded that ISON had succumbed to its passage and died a fiery death. Except it didn't. Well, maybe...

Comet ISON: Your Half-time Report

Karl Battams • November 26, 2013 • 1

I am heading out to Kitt Peak to join my fellow CIOC-ers Matthew and Casey for perihelion observations of Comet ISON, and I find myself having an early moment of reflection.

ISON, Encke, Mercury, and Home

Karl Battams • November 22, 2013 • 3

Comet ISON has entered the field of view of the STEREO HI-1A camera, and, in an awesome animation, it joins a large cast of characters already present there.

Comet ISON Enters the Final Countdown

Karl Battams • November 19, 2013 • 6

We're now less than two weeks away from comet C/2012 S1 (ISON) reaching perihelion and, if we’re honest, we are still none the wiser as to how the situation might play out!

Video: Comet ISON: Super Bright or Super Lame?

Bruce Betts • November 12, 2013 • 2

Comet ISON (C/2012 S1) was touted months ago by media as the possible comet of the century. Will it be that, or a cosmic dud? Find out the basics about the in this short video.

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