Fire vs. ice: The science of ISON at perihelion

Wednesday, December 11, 2013 - 14:40 in Astronomy & Space

After a year of observations, scientists waited with bated breath on Nov. 28, 2013, as Comet ISON made its closest approach to the sun, known as perihelion. Would the comet disintegrate in the fierce heat and gravity of the sun? Or survive intact to appear as a bright comet in the pre-dawn sky?

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Death of a Comet: What We Learned from the Passing of ISON
from Scientific American
Fri, 13 Dec 2013, 12:30:05 UTC

Fire vs. ice: The science of ISON at perihelion
from Physorg
Wed, 11 Dec 2013, 18:10:44 UTC
RIP Comet ISON: Scientists Declare Famous 'Sungrazer' Dead After Sun Encounter
from Live Science
Wed, 11 Dec 2013, 17:04:42 UTC
RIP Comet ISON: Scientists Declare Famous 'Sungrazer' Dead After Sun Encounter
from Space.com
Wed, 11 Dec 2013, 12:30:40 UTC
Comet ISON finally pronounced dead after close encounter with sun
from MSNBC: Science
Wed, 11 Dec 2013, 1:00:36 UTC
Comet ISON pronounced dead; Sun is chief suspect
from Physorg
Tue, 10 Dec 2013, 23:30:35 UTC
Comet ISON's demise a boon to science
from CBSNews - Science
Mon, 9 Dec 2013, 22:00:42 UTC
Looks like a comet but feels like an asteroid? That's wild!
from Physorg
Mon, 9 Dec 2013, 15:30:26 UTC
Japanese Astronaut Sees Comet ISON from Space | Video
from Space.com
Fri, 6 Dec 2013, 23:30:13 UTC
NASA begins search for what is left of Comet ISON
from Physorg
Thu, 5 Dec 2013, 23:00:58 UTC
Comet ISON's demise a boon to science
from CBSNews - Science
Thu, 5 Dec 2013, 20:00:14 UTC
What happened to comet ISON?
from Physorg
Thu, 5 Dec 2013, 15:31:02 UTC
What Happened to Comet ISON?
from Science @ NASA
Wed, 4 Dec 2013, 19:20:04 UTC
ISON appears to have broken up after brush with sun
from Sciencenews.org
Tue, 3 Dec 2013, 23:00:37 UTC
NASA investigating the life of Comet ISON
from Science Daily
Tue, 3 Dec 2013, 1:30:11 UTC
Fate of Comet ISON Uncertain After Fiery Sun Encounter
from Space.com
Tue, 3 Dec 2013, 0:30:15 UTC
No return from the dead for Comet ISON
from Reuters:Science
Tue, 3 Dec 2013, 0:10:03 UTC
NASA investigating the life of Comet ISON
from Physorg
Mon, 2 Dec 2013, 21:31:14 UTC
Comet ISON races toward Thanksgiving Day solar flyby
from CBSNews - Science
Mon, 2 Dec 2013, 21:31:00 UTC
Scientists baffled by new picures of Comet ISON
from CBSNews - Science
Mon, 2 Dec 2013, 21:30:54 UTC
ScienceShot: Comet ISON Survives Its Solar Gantlet
from Science NOW
Mon, 2 Dec 2013, 20:50:06 UTC
ScienceShot: First-Time Comet Perishes
from Science NOW
Mon, 2 Dec 2013, 20:50:03 UTC
Comet ISON's Ghost Seen By Two Spacecraft | Video
from Space.com
Mon, 2 Dec 2013, 16:30:15 UTC
Comet ISON's Ghost Seen By Two Spacecraft | Video
from Live Science
Mon, 2 Dec 2013, 16:30:12 UTC
The December night sky
from The Guardian - Science
Mon, 2 Dec 2013, 12:00:59 UTC
Comet, Thought Dead but Found Alive, Is Now Fading Away, Astronomers Say
from NY Times Science
Mon, 2 Dec 2013, 8:50:10 UTC
Comet ISON may have survived
from Science Daily
Mon, 2 Dec 2013, 0:00:11 UTC
The December night sky
from The Guardian - Science
Sun, 1 Dec 2013, 22:00:15 UTC
Scientists find signs Comet ISON may have survived flyby of the sun
from Physorg
Sun, 1 Dec 2013, 10:30:45 UTC
Comet ISON's leftovers fade away, right before a satellite's eyes
from MSNBC: Science
Sat, 30 Nov 2013, 19:00:15 UTC
Comet ISON, Presumed Dead, Shows New Life
from NY Times Science
Sat, 30 Nov 2013, 13:00:09 UTC
Comet ISON Survives Its Solar Gantlet
from Science NOW
Sat, 30 Nov 2013, 2:20:04 UTC
ISON's Dance with the Sun | Space Wallpaper
from Live Science
Fri, 29 Nov 2013, 20:00:11 UTC
ISON's Dance with the Sun | Space Wallpaper
from Space.com
Fri, 29 Nov 2013, 19:30:19 UTC
ISON seems to have survived close call with sun
from Sciencenews.org
Fri, 29 Nov 2013, 19:20:04 UTC
Comet ISON Is Alive! Survives Sun Swing | Video
from Space.com
Fri, 29 Nov 2013, 18:30:53 UTC
Only mostly dead: Astronomers puzzle over zombie Comet ISON
from MSNBC: Science
Fri, 29 Nov 2013, 18:30:52 UTC
Comet ISON Gets Roasted by Sun and Vanishes, But Did It Survive?
from Live Science
Fri, 29 Nov 2013, 17:30:36 UTC
Part of comet ISON likely survived after all
from CBC: Technology & Science
Fri, 29 Nov 2013, 16:30:14 UTC
Comet ISON Gets Roasted by Sun and Vanishes, But Did It Survive?
from Space.com
Fri, 29 Nov 2013, 15:30:40 UTC
Remnants suggest comet ISON still going
from News @ Nature
Fri, 29 Nov 2013, 15:00:49 UTC
Comet Ison appears to survive close encounter with the sun
from The Guardian - Science
Fri, 29 Nov 2013, 14:30:23 UTC
Comet Ison: a viewer's guide
from The Guardian - Science
Fri, 29 Nov 2013, 14:00:31 UTC
Did Comet ISON survive? Scientists see tiny hope
from Physorg
Fri, 29 Nov 2013, 12:30:24 UTC
Image: Comet ISON on Thanksgiving Day
from Physorg
Fri, 29 Nov 2013, 12:00:23 UTC
Comet Ison appears to vanish from space - video
from The Guardian - Science
Fri, 29 Nov 2013, 10:30:35 UTC
Comet Ison fragment may have survived journey past sun
from The Guardian - Science
Fri, 29 Nov 2013, 10:00:27 UTC
Comet Ison 'continues to surprise'
from CBC: Technology & Science
Fri, 29 Nov 2013, 10:00:17 UTC
Sun-grazing comet ISON likely broke up
from Physorg
Thu, 28 Nov 2013, 22:00:15 UTC
RIP Comet ISON - Icy Visitor Missing After Sun Flyby | Video
from Space.com
Thu, 28 Nov 2013, 21:50:05 UTC
Comet ISON vanishes in a puff of mystery as it goes around the sun
from MSNBC: Science
Thu, 28 Nov 2013, 20:50:07 UTC
Comet Ison likely didn't survive sun encounter
from CBC: Technology & Science
Thu, 28 Nov 2013, 19:50:03 UTC
Comet Ison grazes past Sun's surface
from BBC News: Science & Nature
Thu, 28 Nov 2013, 19:00:38 UTC
Comet ISON Still Alive As It Nears Thanksgiving Perihelion | Time-Lapse Video
from Space.com
Thu, 28 Nov 2013, 18:20:20 UTC
Comet ISON'S Tail Starts To Bend On Thanksgiving Sun Approach | Video
from Space.com
Thu, 28 Nov 2013, 15:20:16 UTC
Heat is on as Comet ISON races toward sun
from Physorg
Thu, 28 Nov 2013, 15:00:29 UTC
Comet Ison's risky encounter with sun approaches
from CBC: Technology & Science
Thu, 28 Nov 2013, 14:20:14 UTC
Comet ISON Makes Thanksgiving Day Sun Flyby Today: Watch It Live Online
from Space.com
Thu, 28 Nov 2013, 12:50:20 UTC
Comet Ison: how to spot it | Stuart Clark
from The Guardian - Science
Thu, 28 Nov 2013, 12:30:10 UTC
Heat is on as Comet ISON races toward sun
from AP Science
Thu, 28 Nov 2013, 11:30:11 UTC
Comet Ison set for close encounter with the sun
from The Guardian - Science
Thu, 28 Nov 2013, 10:30:15 UTC
Comet ISON arrives at perilous encounter
from LA Times - Science
Thu, 28 Nov 2013, 8:20:22 UTC
Comet Ison to graze past the Sun
from BBC News: Science & Nature
Thu, 28 Nov 2013, 2:50:22 UTC
VIDEO: 'Epic' comet Ison approaching the Sun
from BBC News: Science & Nature
Wed, 27 Nov 2013, 23:50:21 UTC
SOHO shows new images of Comet ISON
from Physorg
Wed, 27 Nov 2013, 23:20:31 UTC
See Comet ISON Slingshot Around Sun: Live SOHO Spacecraft Views
from Space.com
Wed, 27 Nov 2013, 23:20:14 UTC
Comet ISON brightens as it closes in on Thanksgiving's solar climax
from MSNBC: Science
Wed, 27 Nov 2013, 22:20:18 UTC
SOHO shows new images of Comet ISON
from Science Daily
Wed, 27 Nov 2013, 22:20:11 UTC
Comet ISON approaches sun for Thanksgiving flyby
from Sciencenews.org
Wed, 27 Nov 2013, 21:20:26 UTC
All Eyes On Comet ISON
from C&EN
Wed, 27 Nov 2013, 18:51:11 UTC
Comet may be visible from Earth if it survives sun's heat, gravity
from Reuters:Science
Wed, 27 Nov 2013, 18:30:17 UTC
Will Comet Ison meet a fiery death tomorrow?
from CBC: Technology & Science
Wed, 27 Nov 2013, 18:20:19 UTC
Will comet ISON survive its near brush with the Sun?
from Physorg
Wed, 27 Nov 2013, 17:51:04 UTC
Still Intact Comet ISON Enters SOHO's Field Of View | Video
from Live Science
Wed, 27 Nov 2013, 17:23:07 UTC
Comet ISON's Thursday Sun Encounter a Thanksgiving Feast for NASA
from Live Science
Wed, 27 Nov 2013, 17:23:03 UTC
Still Intact Comet ISON Enters SOHO's Field Of View | Video
from Space.com
Wed, 27 Nov 2013, 16:30:51 UTC
Comet ISON's Thursday Sun Encounter a Thanksgiving Feast for NASA
from Space.com
Wed, 27 Nov 2013, 16:30:50 UTC
ISON vs the Sun
from European Space Agency
Wed, 27 Nov 2013, 14:31:04 UTC
Comet ISON is in solar probe's sights — and a storm is coming!
from MSNBC: Science
Wed, 27 Nov 2013, 4:00:36 UTC
Comet ISON Nears Sun for Thanksgiving Encounter in NASA Video
from Space.com
Wed, 27 Nov 2013, 4:00:15 UTC
Could Incoming Comet ISON Lose Its Tail to a Thanksgiving Sun Storm?
from Space.com
Wed, 27 Nov 2013, 3:30:19 UTC
Comet dances with sun, death; giving mixed signals
from Physorg
Tue, 26 Nov 2013, 23:30:50 UTC
Comet Ison expected to be visible to the naked eye - video
from The Guardian - Science
Tue, 26 Nov 2013, 23:30:31 UTC
Will Comet ISON beat the odds? Watch a superstar's climactic scene
from MSNBC: Science
Tue, 26 Nov 2013, 22:30:30 UTC
Best Yet Comet ISON Footage From STEREO Released | Video
from Space.com
Tue, 26 Nov 2013, 22:30:25 UTC
Comet dances with sun, death; giving mixed signals
from AP Science
Tue, 26 Nov 2013, 21:30:23 UTC
A tale of two comets: MESSENGER captures images of Encke and ISON
from Physorg
Tue, 26 Nov 2013, 14:30:52 UTC
ISON vs the Sun
from European Space Agency
Tue, 26 Nov 2013, 14:30:18 UTC
Plenty of spacecraft tracking Comet ISON's encounter with sun
from MSNBC: Science
Tue, 26 Nov 2013, 1:00:34 UTC
Three Questions About Comet ISON
from NASA Jet Propulsion Laboratory
Mon, 25 Nov 2013, 22:20:21 UTC
See Comet Tails Flap In Solar Wind
from PopSci
Mon, 25 Nov 2013, 21:30:23 UTC
Comet ISON Spotted by Mercury Probe, Sun Observatory Ahead of Thursday Solar Encounter
from Space.com
Mon, 25 Nov 2013, 21:00:20 UTC
An observer's guide for watching Comet ISON's light show in the sky
from MSNBC: Science
Mon, 25 Nov 2013, 19:30:45 UTC
Where Can You Catch The Best Views of Comet ISON?
from Space.com
Mon, 25 Nov 2013, 19:30:39 UTC
5 Great Places To Observe Comet ISON
from Live Science
Mon, 25 Nov 2013, 19:30:20 UTC
Where Can You Catch The Best Views of Comet ISON?
from Live Science
Mon, 25 Nov 2013, 19:30:19 UTC
Last Chance to See Comet ISON Before Its Thursday Sun Encounter
from Space.com
Mon, 25 Nov 2013, 17:30:28 UTC
Comet ISON's Thanksgiving Day Sun Encounter: Complete Coverage
from Space.com
Mon, 25 Nov 2013, 17:00:31 UTC
Comet ISON to light up morning skies in the run-up to Christmas
from The Guardian - Science
Mon, 25 Nov 2013, 17:00:27 UTC
Can Comet ISON's Tail Survive Solar Storm? | Video
from Live Science
Mon, 25 Nov 2013, 16:30:27 UTC
Can Comet ISON's Tail Survive Solar Storm? | Video
from Space.com
Mon, 25 Nov 2013, 16:00:16 UTC
Comet ISON vs. the solar storm
from Physorg
Mon, 25 Nov 2013, 13:50:17 UTC
Comet ISON vs. the Solar Storm
from Science @ NASA
Sun, 24 Nov 2013, 17:40:05 UTC
Will icy comet survive close encounter with sun?
from AP Science
Sun, 24 Nov 2013, 16:00:24 UTC
Will icy comet survive close encounter with sun?
from AP Science
Sun, 24 Nov 2013, 16:00:23 UTC
Will icy comet survive close encounter with sun?
from Physorg
Sun, 24 Nov 2013, 16:00:19 UTC
Comet ISON's Close Sun Encounter This Week Has Scientists Fired Up
from Space.com
Sun, 24 Nov 2013, 15:30:22 UTC
NASA's solar observing fleet to watch Comet ISON's journey around the sun
from Science Daily
Sun, 24 Nov 2013, 2:00:20 UTC
Best Night Sky Photos of the Week: Nov. 23, 2013
from Space.com
Sat, 23 Nov 2013, 20:30:21 UTC
How Bright Will Comet ISON Get? Only Time Will Tell
from Space.com
Sat, 23 Nov 2013, 15:30:15 UTC
Comet ISON's Thanksgiving Sun Encounter: An Observer's Guide
from Space.com
Sat, 23 Nov 2013, 15:00:12 UTC
Skywatching photo guide: Here's how to capture Comet ISON
from MSNBC: Science
Sat, 23 Nov 2013, 1:30:46 UTC
Skywatchers excited as Comet ISON approaches its big day in the sun
from MSNBC: Science
Fri, 22 Nov 2013, 22:00:45 UTC
NASA's solar observing fleet to watch Comet ISON's journey around the Sun
from Physorg
Fri, 22 Nov 2013, 21:30:42 UTC
How to Photograph Comet ISON: A Skywatching Photo Guide
from Space.com
Fri, 22 Nov 2013, 20:00:30 UTC
How to Photograph Comet ISON: A Photo Guide (Gallery)
from Space.com
Fri, 22 Nov 2013, 19:00:32 UTC
Comets ISON and Enke Enter STEREO Probe Field of View | Video
from Space.com
Fri, 22 Nov 2013, 15:30:46 UTC
SOFIA's target of opportunity: Comet ISON
from Physorg
Fri, 22 Nov 2013, 12:30:21 UTC
Tails of Comet ISON and Comet Lovejoy Caught in Stunning Time-Lapse Video
from Space.com
Thu, 21 Nov 2013, 23:30:23 UTC
How The Sun Cooks Comets | Video
from Space.com
Thu, 21 Nov 2013, 20:00:29 UTC
NASA Sees Comet ISON 9 Days Before Close Sun Encounter
from Space.com
Thu, 21 Nov 2013, 16:30:27 UTC
ISON comet has lost individual fragments
from Physorg
Thu, 21 Nov 2013, 12:00:52 UTC
Promising Comet ISON Gets Brighter, But Will it Sizzle or Fizzle?
from Space.com
Wed, 20 Nov 2013, 21:31:17 UTC
Onward ISON | Space Wallpaper
from Space.com
Wed, 20 Nov 2013, 16:31:34 UTC
Comet ISON unfolds its wings
from Physorg
Tue, 19 Nov 2013, 23:30:26 UTC
Spectacular Comet ISON shines bright in new photo from Chile telescope
from CBSNews - Science
Tue, 19 Nov 2013, 21:00:18 UTC
Spectacular Comet ISON Shines Bright in New Photo from Chile Telescope
from Space.com
Tue, 19 Nov 2013, 13:30:13 UTC
Comet ISON looks fantastic in latest pictures — maybe too fantastic?
from MSNBC: Science
Tue, 19 Nov 2013, 1:20:16 UTC
6-Minute Rocket Launch Aims to See Promising Comet ISON Tuesday
from Space.com
Mon, 18 Nov 2013, 23:30:24 UTC
Stunning Comet ISON Photos Captured by Amateur Astronomer (Images)
from Space.com
Mon, 18 Nov 2013, 20:30:40 UTC
How to see Comet ISON: New app points the way
from CBSNews - Science
Mon, 18 Nov 2013, 19:30:16 UTC
MicroObservatory catches comet ISON
from Science Daily
Mon, 18 Nov 2013, 19:00:28 UTC
MicroObservatory catches comet ISON
from Physorg
Mon, 18 Nov 2013, 18:30:29 UTC
New app points the way to Comet ISON so you can find it in night sky
from MSNBC: Science
Fri, 15 Nov 2013, 22:31:14 UTC
Why you should see Comet Ison this weekend
from CBC: Technology & Science
Fri, 15 Nov 2013, 20:30:12 UTC
How to See Comet ISON: New App Points the Way
from Space.com
Fri, 15 Nov 2013, 15:00:18 UTC
Looking for the 'comet of the century'? Watch ISON online
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Fri, 15 Nov 2013, 2:00:21 UTC
Comet Lovejoy getting brighter as it streaks near Earth
from MSNBC: Science
Thu, 14 Nov 2013, 21:30:48 UTC
Outburst lights up Comet ISON; it's now visible to naked eye
from MSNBC: Science
Thu, 14 Nov 2013, 20:31:05 UTC
Comet ISON's Growing Tails and Lovejoy's Coma Snapped By Photographer | Video
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Thu, 14 Nov 2013, 19:30:29 UTC
Potentially Dazzling Comet ISON Now Visible to Naked Eye After Outburst
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Thu, 14 Nov 2013, 19:30:27 UTC
Comet ISON: What's Next?
from Science @ NASA
Thu, 14 Nov 2013, 17:10:03 UTC
MESSENGER detects comets ISON and Encke, prepares for closer encounters
from Physorg
Thu, 14 Nov 2013, 16:30:42 UTC
Newfound Comet Lovejoy Gets Brighter as It Streaks Near Earth
from Space.com
Thu, 14 Nov 2013, 14:00:43 UTC
NRL-developed telescopes await the approaching comet ISON
from Physorg
Thu, 14 Nov 2013, 14:00:31 UTC
Comet ISON Headed for Close Sun Encounter on Thanksgiving
from Space.com
Thu, 14 Nov 2013, 13:30:24 UTC
Comet ISON Observing Tips: Choosing the Right Binoculars or Telescope
from Space.com
Wed, 13 Nov 2013, 13:30:44 UTC
'Old Faithful' Comet Encke coming back again this month
from MSNBC: Science
Tue, 12 Nov 2013, 23:00:21 UTC
'Old Faithful' Comet Encke Makes Appearance in November Night Sky
from Space.com
Tue, 12 Nov 2013, 15:30:36 UTC
Comet at dawn
from Physorg
Tue, 12 Nov 2013, 11:30:23 UTC
Incoming comet ISON heading for close encounter with sun
from Reuters:Science
Mon, 11 Nov 2013, 23:30:16 UTC
Got a good pair of binoculars? Incoming Comet ISON's visible now
from MSNBC: Science
Mon, 11 Nov 2013, 22:30:17 UTC
Incoming Comet ISON Now Visible in Binoculars
from Space.com
Mon, 11 Nov 2013, 20:00:39 UTC
Starwatch: Mercury and two comets before dawn
from The Guardian - Science
Sun, 10 Nov 2013, 22:00:22 UTC
Things are looking up for Comet ISON: It's brightening at last
from MSNBC: Science
Fri, 8 Nov 2013, 19:30:46 UTC
Promising Comet ISON Now Brightening for Stargazers on Earth
from Space.com
Fri, 8 Nov 2013, 13:00:19 UTC
NASA Sees Comet ISON in Leo Constellation (Photo)
from Space.com
Thu, 7 Nov 2013, 20:00:20 UTC
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from Space.com
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Tue, 5 Nov 2013, 20:30:43 UTC
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from Space.com
Mon, 4 Nov 2013, 23:00:30 UTC
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from Scientific American
Mon, 4 Nov 2013, 14:30:30 UTC
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from Space.com
Sat, 2 Nov 2013, 4:00:43 UTC
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from MSNBC: Science
Fri, 1 Nov 2013, 18:00:43 UTC
Promising Comet ISON Gives Perplexing Performance En Route to Sun
from Space.com
Thu, 31 Oct 2013, 21:30:25 UTC

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Fire vs. ice: The science of ISON at perihelion

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Fire vs. ice: The science of ISON at perihelion

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