Clarksville, TN Online: News, Opinion, Arts & Entertainment.


Topic: Italian Space Agency

NASA says Rosetta Spacecraft discovers target Comet’s center made of two parts

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – As the European Space Agency’s spacecraft Rosetta is slowly approaching its destination, comet 67P/Churyumov-Gerasimenko, the comet is again proving to be full of surprises.

New images obtained by OSIRIS, the onboard scientific imaging system, confirm the body’s peculiar shape hinted at in earlier pictures. Comet 67P is obviously different from other comets visited so far.

The images show that comet 67P/Churyumov-Gerasimenko has a two-part shape. (ESA/Rosetta/MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)

The images show that comet 67P/Churyumov-Gerasimenko has a two-part shape. (ESA/Rosetta/MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)

«Read the rest of this article»

Sections: Technology | No Comments
 

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)

«Read the rest of this article»

Sections: Technology | No Comments
 

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)

«Read the rest of this article»

Sections: Technology | No Comments
 


NASA reports Rosetta spacecraft speeding toward target Comet

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Less than half the distance between Earth and moon separates Rosetta from its destination, comet 67P/Churyumov-Gerasimenko. The European Space Agency’s (ESA) spacecraft will become the first to orbit a comet and land a probe on its nucleus. It is beginning observations and sending science data back to Earth.

Recent images from Rosetta’s Onboard Scientific Imaging System (OSIRIS) indicate that the comet is currently at rest — no longer showing signs of an extended dust coma surrounding its nucleus.

This image of comet 67P/Churyumov-Gerasimenko was taken by the Onboard Scientific Imaging System (OSIRIS) on the European Space Agency's Rosetta spacecraft on June 4, 2014. (ESA/Rosetta/MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)

This image of comet 67P/Churyumov-Gerasimenko was taken by the Onboard Scientific Imaging System (OSIRIS) on the European Space Agency’s Rosetta spacecraft on June 4, 2014. (ESA/Rosetta/MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)

«Read the rest of this article»

Sections: Technology | No Comments
 

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)

«Read the rest of this article»

Sections: Technology | No Comments
 

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)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Cassini spacecraft takes photo of Planet Uranus from Saturn

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Cassini spacecraft has captured its first-ever image of the pale blue ice-giant planet Uranus in the distance beyond Saturn’s rings.

The robotic spacecraft briefly turned its gaze away from the ringed beauty of Saturn on April 11th, 2014, to observe the distant planet, which is the seventh planet from the sun.

This view from NASA's Cassini spacecraft features a blue planet, but unlike the view from July 19, 2013 (PIA17172) that featured our home planet, this blue orb is Uranus, imaged by Cassini for the first time. (NASA/JPL-Caltech/Space Science Institute)

This view from NASA’s Cassini spacecraft features a blue planet, but unlike the view from July 19, 2013 (PIA17172) that featured our home planet, this blue orb is Uranus, imaged by Cassini for the first time. (NASA/JPL-Caltech/Space Science Institute)

«Read the rest of this article»

Sections: Technology | No Comments
 


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)

«Read the rest of this article»

Sections: Technology | No Comments
 

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.

«Read the rest of this article»

Sections: Technology | No Comments
 

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)

«Read the rest of this article»

Sections: Technology | No Comments
 


Page 1 of 512345

Personal Controls

Archives