This NASA Hubble Space Telescope image of Comet ISON was taken on April 10, 2013, when the comet was slightly closer than Jupiter's orbit at a distance of 386 million miles from the sun (394 million miles from Earth). [Full Story]
This contrast-enhanced, computer-processed image was produced from photos of Comet ISON taken by NASA's Hubble Space Telescope on April 10, 2013, when the comet was 386 million miles from the sun. [Full Story]
These images of Comet ISON were taken by NASA's Hubble Space Telescope on April 10, 2013, when the comet was 386 million miles from the sun. The image at right has been computer-processed to reveal the structure of ISON's inner coma. [Full Story]
From now through October, comet ISON tracks through the constellations Gemini, Cancer and Leo as it falls toward the sun. Image released March 29, 2013.
The Ultraviolet/Optical Telescope aboard NASA's Swift imaged comet ISON (center) on Jan. 30, when it was located about 3.3 degrees from the bright star Castor in the constellation Gemini. At the time of this 5.5-minute optical exposure, ISON was about 5,000 times fainter than the limit of human vision. Image released March 29, 2013.
The comet that may put on a spectacular light show during a November date with the Sun, was observed by the Deep Impact mission. The spacecraft has also had close fly-bys of comet's Tempel 1 and Hartley 2 and scientific observations of Garradd. [Read the full story]
This is the orbital trajectory of comet C/2012 S1 (ISON). The comet is currently located just inside the orbit of Jupiter. In November 2013, ISON will pass less than 1.1 million miles (1.8 million kilometers) from the sun's surface. The fierce heating it experiences during this close approach to the sun could turn the comet into a bright naked-eye object. Image released Feb. 5, 2013. [Read the full story]
This still from a NASA video identifies comet C/2012 S1 (ISON), better known as Comet ISON, in a telescope image.
The discoverers of Comet C/2012 S1 (ISON), Vitaly Neski and Artyom Novichonok, are seen here inset against a photo of the comet by amateur astronomer John Chumack.
The orbit of Comet C/2012 S1 (ISON), better known as Comet ISON, is seen here in this still image from a NASA video. This image shows the location of Comet ISON in January 2013.
This star map (calculated for latitude 46 deg. north, time about 45 minutes before sunrise) for Nov. 10, 2013 shows the comet position of Comet C/2012 S1 (ISON). Image released Sept. 24, 2012.
This still from a NASA video depicts the location of Comet ISON in the night sky on Dec. 11, 2013. The comet has the potential to be a dazzling object in the night sky.
Comet C/2012 S1 (ISON) photographed at the RAS Observatory near Mayhill, NM on Sept. 22, 2012, by amateur astronomers Ernesto Guido, Giovanni Sostero and Nick Howes of the Remanzacco Observatory.
This NASA sky map shows the location of Comet C/2012 S1 (ISON), or comet ISON, on Jan. 21, 2013.
This image shows the newfound comet C/2012 (ISON) as seen by the Remanzacco Observatory in Italy. The image, taken by amateur astronomers Ernesto Guido, Giovanni Sostero and Nick Howes, is a confirmation view of the comet, which was first discovered by Vitali Nevski (Vitebsk, Belarus) and Artyom Novichonok (Kondopoga, Russia). Image released Sept. 24, 2012.
Skywatcher Vernon Dye took this shot of Comet ISON on Jan. 8, 2012. Comet ISON c/2012 S1 is currently in the Constellation of Gemini, moving between the head of the Twins Castor and Pollux.
This NASA graphic shows the orbit and current position of comet C/2012 S1 (ISON). The comet is at present located at 6.25 AU from the sun, with 1 AU being the distance from Earth to the sun. Image released Sept. 24, 2012.
Comet Nevski-Novichonok (ISON) as it may appear at sunset on Nov. 29, if it survives its close encounter with the sun the day before.