JPL News

NASA Discovers Further Evidence of Dry Ice Gullies on Mars

July 11, 2014

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A new study details further evidence of dry ice gullies on Mars, revealing that the gullies on Mars’ surface are primarily formed by the seasonal freezing of carbon dioxide, not liquid water. Repeated high-resolution observations made by NASA’s Mars Reconnaissance Orbiter (MRO) indicate the gullies on Mars’ surface are primarily formed by the seasonal freezing […]

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Astronomers View Near-Earth Asteroid 2014 HQ124 as it Passes Earth

June 13, 2014

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Using the Deep Space Network antenna and two other radio telescopes, astronomers were able to capture radar observations of asteroid 2014 HQ124 as it passed Earth on June 8, 2014. NASA scientists using Earth-based radar have produced sharp views of a recently discovered asteroid as it slid silently past our planet. Captured on June 8, […]

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NASA’s Curiosity Rover Views Mercury Passing in Front of the Sun

June 11, 2014

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This new animated image from NASA’s Curiosity rover shows Mercury passing in front of the Sun. NASA’s Curiosity Mars rover has imaged the planet Mercury passing in front of the sun, visible as a faint darkening that moves across the face of the sun. This is the first transit of the sun by a planet […]

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Spitzer Discovers a Rare Supernova Where a Dead Star “Fed” Off an Aging Star

June 4, 2014

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Using data from NASA’s Spitzer Space Telescope, astronomers examined a rare example of Type Ia explosion in which a dead star “fed” off an aging star. Supernovas are often thought of as the tremendous explosions that mark the ends of massive stars’ lives. While this is true, not all supernovas occur in this fashion. A […]

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NASA’s Cassini Views Uranus for the First Time

May 2, 2014

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On April 11, 2014 NASA’s Cassini spacecraft took its first-ever image of the planet Uranus, shown in the distance beyond Saturn’s rings. The robotic spacecraft briefly turned its gaze away from the ringed beauty of Saturn on April 11, 2014, to observe the distant planet, which is the seventh planet from the sun. The planets […]

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Jupiter’s Moon Ganymede May Have Oceans and Ice Stacked Up in Multiple Layers

May 2, 2014

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New research based on laboratory experiments shows that Jupiter’s moon Ganymede may have oceans and ice stacked up in multiple layers like a club sandwich. The largest moon in our solar system, a companion to Jupiter named Ganymede, might have ice and oceans stacked up in several layers like a club sandwich, according to new […]

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Spitzer and WISE Discover Coldest Known Brown Dwarf

April 25, 2014

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NASA’s WISE and Spitzer Space Telescope have discovered the coldest known brown dwarf, which is located 7.2 light-years away. NASA’s Wide-field Infrared Survey Explorer (WISE) and Spitzer Space Telescope have discovered what appears to be the coldest “brown dwarf” known — a dim, star-like body that surprisingly is as frosty as Earth’s North Pole. Images […]

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Researchers Discover the First Exomoon Candidate

April 11, 2014

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By using gravitational microlensing and taking advantage of chance alignments between stars, an international team of researchers has spotted the first signs of an exomoon. Titan, Europa, Io and Phobos are just a few members of our solar system’s pantheon of moons. Are there are other moons out there, orbiting planets beyond our sun? NASA-funded […]

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Curiosity Image Captures Mysterious Bright Spot

April 9, 2014

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A newly released Curiosity image shows a bright spot on the surface of Mars, which was possibly caused by the sun glinting off a rock or cosmic rays striking the camera’s detector. Images taken by NASA’s Curiosity Mars rover on April 2 and April 3 include bright spots, which might be due to the sun […]

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NASA Detects Ocean Inside Saturn’s Moon Enceladus

April 4, 2014

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New data from NASA’s Cassini spacecraft and Deep Space Network provide the first geophysical measurements of the internal structure of Enceladus, suggesting that it harbors a large interior ocean beneath an ice shell. NASA’s Cassini spacecraft and Deep Space Network have uncovered evidence Saturn’s moon Enceladus harbors a large underground ocean of liquid water, furthering […]

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New Data Helps Astronomers Piece Together the Evolution of Supermassive Black Holes

March 27, 2014

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Using data from NASA’s Wide-field Infrared Survey Explorer, astronomers are piecing together the evolution of supermassive black holes. How do you grow a supermassive black hole that is a million to a billion times the mass of our sun? Astronomers do not know the answer, but a new study using data from NASA’s Wide-field Infrared […]

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Cassini Views Four Moons of Saturn

March 25, 2014

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Cassini views Saturn’s moons Prometheus, Pandora, Janus and Epimetheus. Two pairs of moons make a rare joint appearance. The F ring’s shepherd moons, Prometheus and Pandora, appear just inside and outside of the F ring (the thin faint ring furthest from Saturn). Meanwhile, farther from Saturn the co-orbital moons Janus (near the bottom) and Epimetheus […]

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