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Topic: Titan

NASA’s Cassini spacecraft data reveals salty ocean inside Saturn’s moon Titan

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Scientists analyzing data from NASA’s Cassini mission have firm evidence of an ocean inside Saturn’s largest moon, Titan, which might be as salty as the Earth’s Dead Sea. The findings are published in this week’s edition of the journal Icarus.

“This is an extremely salty ocean by Earth standards,” said the paper’s lead author, Giuseppe Mitri of the University of Nantes in France. “Knowing this may change the way we view this ocean as a possible abode for present-day life, but conditions might have been very different there in the past.”

Researchers found that Titan's ice shell, which overlies a very salty ocean, varies in thickness around the moon, suggesting the crust is in the process of becoming rigid. (NASA/JPL/SSI/Univ. of Arizona/G. Mitri/University of Nantes)

Researchers found that Titan’s ice shell, which overlies a very salty ocean, varies in thickness around the moon, suggesting the crust is in the process of becoming rigid. (NASA/JPL/SSI/Univ. of Arizona/G. Mitri/University of Nantes)

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NASA study reveals the moon Titan may have formed earlier than it’s host, Saturn

 

Written by Preston Dyches and Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A combined NASA and European Space Agency (ESA)-funded study has found firm evidence that nitrogen in the atmosphere of Saturn’s moon Titan originated in conditions similar to the cold birthplace of the most ancient comets from the Oort cloud.

The finding rules out the possibility that Titan’s building blocks formed within the warm disk of material thought to have surrounded the infant planet Saturn during its formation.

New research on the nitrogen in Titan's atmosphere indicates that the moon's raw materials might have been locked up in ices that condensed before Saturn began its formation. (NASA/JPL-Caltech/Space Science Institute)

New research on the nitrogen in Titan’s atmosphere indicates that the moon’s raw materials might have been locked up in ices that condensed before Saturn began its formation. (NASA/JPL-Caltech/Space Science Institute)

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NASA’s Cassini spacecraft to make a flyby of Saturn’s moon Titan

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – As NASA’s Cassini spacecraft zooms toward Saturn’s smoggy moon Titan for a targeted flyby on June 18th, mission scientists are excitedly hoping to repeat a scientific tour de force that will provide valuable new insights into the nature of the moon’s surface and atmosphere.

For Cassini’s radio science team, the last flyby of Titan, on May 17th, was one of the most scientifically valuable encounters of the spacecraft’s current extended mission.

Cassini will attempt to bounce signals off of Saturn's moon Titan once more during a flyby on June 18, 2014, revealing important details about the moon's surface. (NASA/JPL-Caltech)

Cassini will attempt to bounce signals off of Saturn’s moon Titan once more during a flyby on June 18, 2014, revealing important details about the moon’s surface. (NASA/JPL-Caltech)

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NASA selects concepts for Phase I of Innovative Advanced Concepts (NIAC) Program

 

Written by David E. Steitz
NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA has selected 12 proposals, including three from the Jet Propulsion Laboratory, Pasadena, California, for study under Phase I of the NASA Innovative Advanced Concepts (NIAC) Program, which aims to turn science fiction into fact through pioneering technology development.

The selected proposals cover a wide range of imaginative concepts, including  a submarine to explore the methane lakes of Titan, using neutrinos to perform measurements for the icy moons of the outer planets, and  a concept to safely capture a tumbling asteroid, space debris, and other applications.

Artist's concept of the Titan Aerial Daughtercraft. (NASA)

Artist’s concept of the Titan Aerial Daughtercraft. (NASA)

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NASA’s Cassini spacecraft uses Sunsets on Saturn’s moon Titan to reveal Atmospheres of Exoplanets

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Scientists working with data from NASA’s Cassini mission have developed a new way to understand the atmospheres of exoplanets by using Saturn’s smog-enshrouded moon Titan as a stand-in. The new technique shows the dramatic influence that hazy skies could have on our ability to learn about these alien worlds orbiting distant stars.

The work was performed by a team of researchers led by Tyler Robinson, a NASA Postdoctoral Research Fellow at NASA’s Ames Research Center in Moffett Field, California. The findings were published May 26th in the Proceedings of the National Academy of Sciences.

Artist's rendering of NASA's Cassini spacecraft observing a sunset through Titan's hazy atmosphere. (NASA/JPL-Caltech)

Artist’s rendering of NASA’s Cassini spacecraft observing a sunset through Titan’s hazy atmosphere. (NASA/JPL-Caltech)

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NASA research shows Jupiter’s moon Ganymede may have layers of ice and oceans

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – 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 NASA-funded research that models the moon’s makeup.

Previously, the moon was thought to harbor a thick ocean sandwiched between just two layers of ice, one on top and one on bottom.

This artist's concept of Jupiter's moon Ganymede, the largest moon in the solar system, illustrates the "club sandwich" model of its interior oceans. (NASA/JPL-Caltech)

This artist’s concept of Jupiter’s moon Ganymede, the largest moon in the solar system, illustrates the “club sandwich” model of its interior oceans. (NASA/JPL-Caltech)

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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 researchers finds signs of Exomoon

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Titan, Europa, Io and Phobos are just a few members of our solar system’s pantheon of moons. Are there other moons out there, orbiting planets beyond our sun?

NASA-funded researchers have spotted the first signs of an “exomoon,” and though they say it’s impossible to confirm its presence, the finding is a tantalizing first step toward locating others. The discovery was made by watching a chance encounter of objects in our galaxy, which can be witnessed only once.

Researchers have detected the first "exomoon" candidate -- a moon orbiting a planet that lies outside our solar system. (Image credit: NASA/JPL-Caltech)

Researchers have detected the first “exomoon” candidate — a moon orbiting a planet that lies outside our solar system. (Image credit: NASA/JPL-Caltech)

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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’s Cassini spacecraft catches Saturn and it’s Moons dressed for Christmas

 

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

NASA - National Aeronautics and Space AdministrationPasadena, CA -This holiday season, feast your eyes on images of Saturn and two of its most fascinating moons, Titan and Enceladus, in a care package from NASA’s Cassini spacecraft. All three bodies are dressed and dazzling in this special package assembled by Cassini’s imaging team.

“During this, our tenth holiday season at Saturn, we hope that these images from Cassini remind everyone the world over of the significance of our discoveries in exploring such a remote and beautiful planetary system,” said Carolyn Porco, Cassini imaging team leader, based at the Space Science Institute, Boulder, CO. “Happy holidays from all of us on Cassini.”

The globe of Saturn, seen here in natural color, is reminiscent of a holiday ornament in this wide-angle view from NASA's Cassini spacecraft. (NASA/JPL-Caltech/Space Science Institute)

The globe of Saturn, seen here in natural color, is reminiscent of a holiday ornament in this wide-angle view from NASA’s Cassini spacecraft. (NASA/JPL-Caltech/Space Science Institute)

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