A new analysis of data from the ESA/NASA Solar and Heliospheric Observatory (SOHO) spacecraft has revealed that comet 2012/S1 (ISON) stopped producing dust and gas shortly before it raced past the Sun and disintegrated.When comet ISON was discovered in the autumn of 201
July 16, 2014
In November 2013, skywatchers around the world eagerly awaited the approach of Comet ISON. Dubbed the "Comet of the Century" by several in the media, some astronomers had predicted a stupendous cometary display as Comet ISON approached its perihelion. The
December 08, 2013
Just as we all accepted that the Comet ISON has most likely disintegrated under the high heat and gravitational stress of the Sun, amazing sungrazer came ALIVE, gaining more brightness. Thousands watched ISON's journey through the solar system and its unusual
November 29, 2013
Latest updates: December 2, 2013 13:45 UTC Comet ISON's November adventures video by Sun Whisperers 13:43 UTC Latest CIOC update: In Memoriam: "...Never one to follow convention, ISON lived a dynamic and unpredictable life,
November 28, 2013
On November 28, 2013 at 18:44 UTC Comet ISON will reach its perihelion and fly by about 1.2 million km (730 000 miles) above the solar surface. Since space-based solar observatories will be recording its passage just follow the links and timetable below for
November 27, 2013
November 30, 2013 ISON is fading and exiting LASCO C3 view. 08:18 UTC Comet ISON on November 30, 2013 @ 08:18. Image credit: ESA/NASA SOHO 05:30 UTC Karl Battams (NRL/CIOC) wrote and update on ISON and embeded cool gifs from STEREO: In
November 26, 2013
The team at IRAM millimeter telescope, Spain, reported today that they see consistent rapid fading of ISON's molecular emission lines. The fading was recorded between November 21 and 25 by at least a factor of 20
November 25, 2013
Comet ISON will pass through the Sun's atmosphere at just about 1.2 million km (730 000 miles) above the solar surface on November 28, 2013 at 18:44 UTC. It is now entering the fields of view of space-based solar observatories and will be viewed first
November 25, 2013
Comet ISON entered STEREO Ahead HI1 field of view. First image was taken at 21:34 UTC on November 20, 2013. Both STEREO spacecraft will have a view of the comet in the COR1 and COR2 coronagraphs in the hours around closest approach on November 28. You can examine
November 21, 2013
Comet Encke will fly by Mercury within 0.025 AU (3.74 million km) on November 18, 2013 and only a day later, Comet ISON will pass it at 0.24 AU. This is a unique cosmic coincidence and NASA's MESSENGER spacecraft, which is orbiting the planet,
November 15, 2013
Observers around the world are reporting that Comet ISON brightened sharply last night and is now at the threshold of naked-eye visibility. By some reports, ISON surged in brightness by approximately 2 magnitudes over last 24 hours and is now brighter than
November 14, 2013
Comet ISON is every day more and more closer to the Sun, and with every new day it reveals more new details. More astronomers report clearly visible double tail feature. Primary ion gas tail developed a dust tail companion so now Comet ISON is double tail
November 12, 2013
Comet ISON has almost completed its journey from the Oort Cloud to Sun's photosphere and is now inside the orbit of Earth. On November 28, 2013 Comet ISON will fly only 1 million kilometers (2.7 solar radii) above Sun's surface,
November 09, 2013
New studies released at the American Astronomical Society’s 45th Annual Division for Planetary Sciences meeting in Denver, Colorado suggests that Comet ISON could make it through its close perihelion passage near the Sun. Researchers Matthew Knight
October 11, 2013
November 28, 2013 T -0 D-day! Comet ISON vs The Sun Most of you have already seen latest ISON images from SOHO's LASCO and are sharing this unique experience with the rest of the world. If you are not in the train yet... we are all watching ISON via
September 17, 2013
After several weeks of being hidden behind the Sun, comet C/2012 S1 (ISON) finally emerged from solar conjunction mid August, and early, tentative measures of its brightness by CIOC hint that it is beginning to slowly brighten up. CIOC writes: From
August 26, 2013
Spitzer Space Telescope observed Comet ISON for 24 hours period on June 13, 2013. Its processed imagery indicate that carbon dioxide and dust are spewing out of the comet at high rate. At the time, Comet ISON was about 312 million miles (502 million
July 25, 2013