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Spazio: Sorvolando Encelado
Encelado ripreso dalla missione Cassini-Huygens. Crediti: NASA/JPL/Space Science Institute
La sonda Cassini ha da poco effettuato il primo di tre passaggi radenti (in gergo tecnico flyby) di Encelado, una delle lune di Saturno, previsti dal piano della missione congiuntadi NASA, ESA e ASI, destinata ad esplorare il pianeta dagli anelli e il suo sistema di satelliti naturali. La minima distanza…
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With a storied, six-decade history of visiting neighboring planets, gathering galactic data, eavesdropping on the cosmos and striving to see the edge of the universe, Cornell’s Center for Radiophysics and Space Research has a new name, effective Aug. 12: the Cornell Center for Astrophysics and Planetary Science (CCAPS).
Since its 1959 founding, the center’s emphasis on radio astronomy and radar observations has expanded into astrophysical and planetary research. Housed in the astronomy department, CCAPS (pronounced see-caps) engages faculty and scientists from many disciplines in projects and gives students – including undergraduates – a chance to work on exciting scientific projects.
CCAPS scientists have worked on missions to Mars and Jupiter, driven the Mars rovers Spirit and Opportunity, flown on SOFIA – the Stratospheric Observatory for Infrared Astronomy telescope aboard a Boeing 747 - ventured to Saturn via the Cassini-Huygens mission, and conducted research in astrobiology, general relativity, exoplanets, galactic and extragalactic astronomy, stellar and black hole astrophysics and chemistry.
“Going back to Cornell faculty greats like Thomas Gold and Carl Sagan, and to the early days of space exploration, back to the Mariner 9 and Viking missions in the 70’s, Cornell has played a lead role in exploring the solar system and the universe at large,” saidJonathan Lunine, the David C. Duncan Professor in the Physical Sciences and the center’s director. “Our center’s name change better reflects our role in the exploration of the cosmos,” he said.
Mission to Enceladus: Life on Saturn’s moon?
Voyages interviewed Jonathan Lunine, David C. Duncan Professor in the Physical Sciences, Director of the Center for Radiophysics and Space Research, and member of Cornell University's Carl Sagan Institute. Lunine is currently working on a mission to Saturn’s icy moon, Enceladus— which, if successful, could make Lunine’s mission the first to discover life in space.
Watch the video here:
And the full interview here:
"We now have very strong evidence that there is a hot hydrothermal environment at the base of Enceladus's ocean, perhaps like those where we believe life began on Earth. This is yet another discovery in a series of really remarkable findings that have come one by one, to tell us that this may be the place to go look for life in the outer solar system."
Jonathan Lunine, professor of astronomy and member of the Cassini spacecraft team, commenting on new discoveries of environments that could support life on one of Saturn’s moon.
Saturn’s moon Titan may harbor life due to vast seas and rivers of liquid methane
Saturn’s moon Titan may harbor life due to vast seas and rivers of liquid methane
WASHINGTON: Scientists say that Saturn’s moon Titan may indeed be harboring life – but the type of life forms that may be gathered beneath its mysterious surface might be more alien that we might think. Titan is understood to have vast seas and rivers of liquid methane instead of liquid water, as the temperature on the satellite is much too low to harbor anything but water in solid form. However,…
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Life is all about building structures, capturing and using energy, and storing and transferring the information needed to synthesize the molecules to do all these things. “If we can show that we have molecules on Titan that build structures and capture energy then we will have some specific predictions for what to look for when we finally do return to Titan’s surface with the next generation of instruments beyond Huygens.
Jonathan Lunine, the David C. Duncan Professor in the Physical Sciences and director of the Center for Radiophysics and Space Research, featured in this Cosmos Magazine story about the search for life on Titan, Saturn’s largest moon.
Lunine featured on Bloomberg about NASA’s Mars missions
Listen in as Jonathan Lunine, the David C. Duncan Professor in the Physical Sciences and director of the Center for Radiophysics and Space Research, is interviewed on Bloomberg Surveillance about NASA and efforts to travel to Mars. (Lunine’s segment begins at 4:51 into the piece.)
“The Mars Science Laboratory Curiosity has accomplished three significant scientific successes. First and foremost, the detection of bursts of methane in Mars’ atmosphere appears to vindicate earlier orbiter and Earth-based observations. One cannot tell whether the methane is biotic or geological in origin, but now priority must be given in future missions to determine this. “Second, the discovery of organics in a Martian clay, if indigenous to Mars and not from meteorites, suggests that the search for signs of life might be possible in rocks at the surface, instead of much deeper down. “Finally, Curiosity’s observations of the general tilt of sediments in the direction of Mount Sharp provide a strong argument for the action of liquid water in the buildup of this unusual mountain - and vindicates the decision of Curiosity’s science team to delay arrival at the mountain in favor of exploration around the crater.”
Jonathan Lunine, the David C. Duncan Professor in the Physical Sciences and director of the Center for Radiophysics and Space Research, commenting on today's news about the discovery of methane on Mars by the Mars Rover Curiosity.
