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Topic: Moon

NASA’s Cassini spacecraft captures image of possible new Moon around Saturn

 

Written by Jane Platt
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Cassini spacecraft has documented the formation of a small icy object within the rings of Saturn that may be a new moon, and may also provide clues to the formation of the planet’s known moons.

Images taken with Cassini’s narrow angle camera on April 15th, 2013, show disturbances at the very edge of Saturn’s A ring — the outermost of the planet’s large, bright rings. One of these disturbances is an arc about 20 percent brighter than its surroundings, 750 miles (1,200 kilometers) long and 6 miles (10 kilometers) wide.

The disturbance visible at the outer edge of Saturn's A ring in this image from NASA's Cassini spacecraft could be caused by an object replaying the birth process of icy moons. (NASA)

The disturbance visible at the outer edge of Saturn’s A ring in this image from NASA’s Cassini spacecraft could be caused by an object replaying the birth process of icy moons. (NASA)

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NASA’s Cassini spacecraft data reveals Saturn’s moon Enceladus has underground Ocean

 

Written by Dr. Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. -  Evidence that Saturn’s moon Enceladus harbors a large underground ocean has been uncovered by NASA’s Cassini spacecraft and Deep Space Network, furthering scientific interest in the moon as a potential home to extraterrestrial microbes.

Researchers theorized the presence of an interior reservoir of liquid water in 2005 when Cassini discovered water vapor and ice spewing from vents near the moon’s south pole. New data on the moon’s gravity field reported in the April 4th, 2014, edition of the journal Science strengthen the case for an ocean hidden inside Enceladus.

This diagram illustrates the possible interior of Saturn's moon Enceladus based on a gravity investigation by NASA's Cassini spacecraft and NASA's Deep Space Network, reported in April 2014.

This diagram illustrates the possible interior of Saturn’s moon Enceladus based on a gravity investigation by NASA’s Cassini spacecraft and NASA’s Deep Space Network, reported in April 2014.

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NASA reports United States to be treated to a series of Lunar Eclipses starting April 15th, 2014

 

Written by Dr. Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – For people in the United States, an extraordinary series of lunar eclipses is about to begin.

The action starts on April 15th when the full Moon passes through the amber shadow of Earth, producing a midnight eclipse visible across North America. So begins a lunar eclipse tetrad—a series of 4 consecutive total eclipses occurring at approximately six month intervals. The total eclipse of April 15th, 2014, will be followed by another on October 8th, 2014, and another on April 4th, 2015, and another on September 28th 2015.

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NASA’s Cassini spacecraft to begin 100th trip around Saturn’s moon Titan

 

Written by Gay Hill
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Ten years ago, we knew Titan as a fuzzy orange ball about the size of Mercury. We knew it had a nitrogen atmosphere — the only known world with a thick nitrogen atmosphere besides Earth. But what might lie beneath the hazy air was still just a guess.

On March 6th, NASA’s Cassini spacecraft will swoop down within 933 miles (1,500 kilometers) of Titan to conduct its 100th flyby of the Saturn moon. Each flyby gives us a little more knowledge of Titan and its striking similarities to our world.

This artist's concept shows a possible model of Titan's internal structure that incorporates data from NASA's Cassini spacecraft. (A. D. Fortes/UCL/STFC)

This artist’s concept shows a possible model of Titan’s internal structure that incorporates data from NASA’s Cassini spacecraft. (A. D. Fortes/UCL/STFC)

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NASA reports Asteroid will pass by Earth safely Wednesday

 

Written Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – As happens about 20 times a year with current detection capabilities, a known asteroid will safely pass Earth Wednesday closer than the distance from Earth to the moon.

This asteroid, 2014 DX110, is estimated to be about 100 feet (30 meters) across. Its closest approach to Earth will be at about 217,000 miles (about 350,000 kilometers) from Earth at about 1:00pm PST (4:00pm EST) on March 5th. The average distance between Earth and its moon is about 239,000 miles (385,000 kilometers).

This image shows the relative locations of asteroid 2014 DX110 and Earth on March 4, 2014. The asteroid will make its closest approach to Earth on March 5 at about 1 p.m. PST (4 p.m. EST). (NASA/JPL-Caltech)

This image shows the relative locations of asteroid 2014 DX110 and Earth on March 4, 2014. The asteroid will make its closest approach to Earth on March 5 at about 1 p.m. PST (4 p.m. EST). (NASA/JPL-Caltech)

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NASA’s Johnson Space Center Scientists discover new evidence of Water in Mars Meteorite

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A team of scientists at NASA’s Johnson Space Center in Houston and the Jet Propulsion Laboratory in Pasadena, CA, has found evidence of past water movement throughout a Martian meteorite, reviving debate in the scientific community over life on Mars.

In 1996, a group of scientists at Johnson led by David McKay, Everett Gibson and Kathie Thomas-Keprta published an article in Science announcing the discovery of biogenic evidence in the Allan Hills 84001(ALH84001) meteorite.

This scanning electron microscope image of a polished thin section of a meteorite from Mars shows tunnels and curved microtunnels. (NASA)

This scanning electron microscope image of a polished thin section of a meteorite from Mars shows tunnels and curved microtunnels. (NASA)

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NASA’s Deep Space Network releases images of Near Earth Asteroid 2006 DP14

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A collage of radar images of near-Earth asteroid 2006 DP14 was generated by NASA scientists using the 230-foot (70-meter) Deep Space Network antenna at Goldstone, CA, on the night of February 11th, 2014.

Delay-Doppler radar imaging revealed that the asteroid is about 1,300 feet (400 meters) long, 660 feet (200 meters) wide, and shaped somewhat like a big peanut. The asteroid’s period of rotation is about six hours.

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NASA looks for Asteroid candidates for Redirect Mission to the Moon

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – One year ago, on February 15th, 2013, the world was witness to the dangers presented by near-Earth Objects (NEOs) when a relatively small asteroid entered Earth’s atmosphere, exploding over Chelyabinsk, Russia, and releasing more energy than a large atomic bomb.

Tracking near-Earth asteroids has been a significant endeavor for NASA and the broader astronomical community, which has discovered 10,713 known near-Earth objects to date.

This concept image shows an astronaut preparing to take samples from the captured asteroid after it has been relocated to a stable orbit in the Earth-moon system. Hundreds of rings are affixed to the asteroid capture bag, helping the astronaut carefully navigate the surface.

This concept image shows an astronaut preparing to take samples from the captured asteroid after it has been relocated to a stable orbit in the Earth-moon system. Hundreds of rings are affixed to the asteroid capture bag, helping the astronaut carefully navigate the surface.

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NASA reports scientists map solar system’s largest moon, Jupiter’s Ganymede

 

Written by Jia-Rui Cook
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – More than 400 years after its discovery by astronomer Galileo Galilei, the largest moon in the solar system – Jupiter’s moon Ganymede – has finally claimed a spot on the map.

A group of scientists led by Geoffrey Collins of Wheaton College has produced the first global geologic map of Ganymede, Jupiter’s seventh moon. The map combines the best images obtained during flybys conducted by NASA’s Voyager 1 and 2 spacecraft (1979) and Galileo orbiter (1995 to 2003) and is now published by the U. S. Geological Survey as a global map.

To present the best information in a single view of Jupiter's moon Ganymede, a global image mosaic was assembled, incorporating the best available imagery from NASA's Voyager 1 and 2 spacecraft and NASA's Galileo spacecraft. (USGS Astrogeology Science Center/Wheaton/NASA/JPL-Caltech)

To present the best information in a single view of Jupiter’s moon Ganymede, a global image mosaic was assembled, incorporating the best available imagery from NASA’s Voyager 1 and 2 spacecraft and NASA’s Galileo spacecraft. (USGS Astrogeology Science Center/Wheaton/NASA/JPL-Caltech)

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NASA’s Cassini spacecraft and Hubble Space Telescope capture unique view of Saturn’s Auroras

 

Written by Jia-Rui Cook
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA trained several pairs of eyes on Saturn as the planet put on a dancing light show at its poles.

While NASA’s Hubble Space Telescope, orbiting around Earth, was able to observe the northern auroras in ultraviolet wavelengths, NASA’s Cassini spacecraft, orbiting around Saturn, got complementary close-up views in infrared, visible-light and ultraviolet wavelengths. Cassini could also see northern and southern parts of Saturn that don’t face Earth.

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