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This frame from a movie sequence of images from NASA Mars Reconnaissance Orbiter MRO shows comet C/2013 A1 Siding Spring before and after its close pass by Mars in October 2014. False color enhances subtle variations in brightness in the comet coma.
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This artist impression shows the orbits of planets and comets around the star 61 Vir, superimposed on a view from the Herschel Space Telescope.
Ver en NASA ↗This close-up view of comet Hartley 2 was taken at 7:00 a.m. PDT 10 a.m. EDT, after NASA EPOXI mission flew by.
Ver en NASA ↗Researchers at NASA Jet Propulsion Laboratory in Pasadena, California, use a cryostat instrument, nicknamed Himalaya, to study the icy conditions under which comets form.
Ver en NASA ↗This image shows comet Tempel 1 as seen through the clear filter of the medium resolution imager camera on NASA Deep Impact. It was taken on June 25, 2005.
Ver en NASA ↗This pair of images shows the before-and-after comparison of the part of comet Tempel 1 that was hit by the impactor from NASA Deep Impact spacecraft.
Ver en NASA ↗This close-up view of comet Hartley 2 was taken at 7:00 a.m. PDT 10 a.m. EDT, after NASA EPOXI mission flew by.
Ver en NASA ↗NASA Spitzer Space Telescope has captured an image of an unusual comet that experiences frequent outbursts, which produce abrupt changes in brightness.
Ver en NASA ↗This image from an animation shows comet Tempel 1 as seen through the clear filter of the medium resolution imager camera on NASA Deep Impact.
Ver en NASA ↗Comet Tempel 1 as seen by the NASA Deep Impact impactor targeting sensor at 7:44 Universal Time, July 3, 2005.
Ver en NASA ↗This image shows comet Tempel 1 as seen through the clear filter of the medium resolution imager camera on NASA Deep Impact. It was taken on June 26, 2005.
Ver en NASA ↗How did scientists know that NASA Voyager spacecraft entered interstellar space? Increase in the density of charged particles was the key piece of evidence. Our sun sits in a bubble, called the heliosphere, carved out by wind emitted from the hot sun.
Ver en NASA ↗An optical color image of galaxies is seen here overlaid with X-ray data magenta from NASA Nuclear Spectroscopic Telescope Array NuSTAR. Both magenta blobs show X-rays from massive black holes buried at the hearts of galaxies.
Ver en NASA ↗A trip past the sun may have selectively altered the production of one form of water in a comet – an effect not seen by astronomers before, a new NASA study suggests. Astronomers from NASA’s Goddard Space Flight Center in Greenbelt, Maryland, observed the Oo…
Ver en NASA ↗An expanded view of comet C/2006 W3 Christensen is shown here. NASA WISE spacecraft observed this comet on April 20th, 2010 as it traveled through the constellation Sagittarius.
Ver en NASA ↗Hubble Sees Material Ejected From Comet Hale-Bopp
Ver en NASA ↗Artist concept of NASA Deep Space 1 Encounter with Comet Borrelly.
Ver en NASA ↗This illustration of the Comet-Shoemaker/Levy collision shows the first piece of the remains of the comet crashing into Jupiter. This event occurred in 1994 after tidal forces from Jupiter caused the comet to break up into 21 separate pieces. Although on a ve…
Ver en NASA ↗NASA MAVEN spacecraft obtained this ultraviolet image of hydrogen surrounding comet Siding Spring on Oct. 17, 2014, two days before the comet closest approach to Mars.
Ver en NASA ↗Comet Siding Spring will have a close approach to Mars on Oct. 19, 2014. This artist concept shows people in the Southern Hemisphere where to look for Mars in the night sky. Mars and the comet may be visible with binoculars.
Ver en NASA ↗This synthesized composite of NASA Hubble Space Telescope images captures the positions of comet Siding Spring and Mars in a never-before-seen close passage of a comet by the Red Planet.
Ver en NASA ↗NASA NEOWISE mission detected comet C/2013 A1 Siding Spring on July 28, 2014, less than three months before this comet close flyby of Mars on Oct. 19.
Ver en NASA ↗This pencil sketch of the Comet Kohoutek made by Skylab-4 astronaut Edward Gibson illustrates the crew's collective impressions of the comet's appearance on December 29, 1973. An early discovery of a large comet in an orbit that would reach close to the Sun a…
Ver en NASA ↗Jim Green, director, Planetary Science Division, NASA Headquarters, Washington, left, is seen with fellow panelists Carey Lisse, senior astrophysicist, Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, Kelly Fast, program scientist, Plan…
Ver en NASA ↗Contenido y metadatos proporcionados por la NASA Image and Video Library.