Topic: Italian Space Agency
Written by Guy Webster
Pasadena, 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.
Written by Tony Phillips
Washington, 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.”
Written by Preston Dyches and Whitney Clavin
Pasadena, 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.
Written by DC Agle
Pasadena, 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.
Written by Preston Dyches
Pasadena, 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.
Written by Preston Dyches
Pasadena, 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.
Written by Preston Dyches
Pasadena, 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.
Written by Jane Platt
Pasadena, 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.
Written by Dr. Tony Phillips
Washington, 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.
Written by Gay Hill
Pasadena, 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.
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