Ice on Titanís Lakes: "May Host an Exotic Form of Life" says NASA/JPL
A new paper by scientists on NASAís Cassini mission finds that blocks of hydrocarbon ice might decorate the surface of existing lakes and seas of liquid hydrocarbon on Saturnís moon Titan. The presence of ice floes might explain some of the mixed readings Cassini has seen in the reflectivity of the surfaces of lakes on Titan.
"One of the most intriguing questions about these lakes and seas is whether they might host an exotic form of life," said Jonathan Lunine, a paper co-author and Cassini interdisciplinary Titan scientist at Cornell University, Ithaca, N.Y. "And the formation of floating hydrocarbon ice will provide an opportunity for interesting chemistry along the boundary between liquid and solid, a boundary that may have been important in the origin of terrestrial life."
Titan is the only other body besides Earth in our solar system with stable bodies of liquid on its surface. But while our planetís cycle of precipitation and evaporation involves water, Titanís cycle involves hydrocarbons like ethane and methane. Ethane and methane are organic molecules, which scientists think can be building blocks for the more complex chemistry from which life arose. Cassini has seen a vast network of these hydrocarbon seas cover Titanís northern hemisphere, while a more sporadic set of lakes bejewels the southern hemisphere.
Scientists think the variations in reflectivity, or brightness, have to do with the smoothness or texture of the surface. If a lake is fully liquid, it looks dark, but if it is only partially liquid, it looks brighter.
Read the full article at: dailygalaxy.com
Latest News from our Front Page
Estonia must accept African & Middle Eastern immigrants says politician
Kalle Laanet, an Estonian politician, spoke at the International Migration Forum held in Tallinn. He told the audience that the question is not: Should Estonia take the African and the Middle Eastern immigrants (who illegally entered Southern Europe)? He said the question is: How will Estonia take the immigrants?
‚ÄúToday the issue is not whether Estonia should receive the refugees coming to ...
Rescuing Palmyra: History's lesson in how to save artefacts
With Islamic State militants now inside the historic town of Palmyra in Syria, the question, inevitably, is whether they will destroy the ancient ruins.
As IS continues to sweep through parts of Iraq and Syria, damage to centuries-old artefacts - because IS sees statues and shrines as idolatrous - is plentiful.
But history has shown that, when culturally important sites are under ...
Saudi Arabia Wants to Convert Sweden to Islam
Aje Carlbom is an Associate Professor of Social Anthropology, University of Malmö
Since the 1970s, Saudi Arabia has actively spread its interpretation of Islam, Wahhabism or Salafism, worldwide. It is the most literal version of Islam and affects many young Muslims, who regard society as a place to Islamize, writes social anthropologist Aje Carlbom.
Sweden's Foreign Minister Margot Wallstr√∂m was ...
Professor: If You Read To Your Kids, You're 'Unfairly Disadvantaging' Others
According to a professor at the University of Warwick in England, parents who read to their kids should be thinking about how they're "unfairly disadvantaging other people's children" by doing so.
In an interview with ABC Radio last week, philosopher and professor Adam Swift said that since "bedtime stories activities . . . do indeed foster and produce . . ...
If You Read About Conspiracies You're Just Like Osama Bin Laden Apparently
At its heart, the story of Osama bin Laden's time at his house in Abbottabad is surreal. The American image of bin Laden - leering at us from under his head wrap as he plots and schemes - is undermined by the mundane realities of his life. The guy was responsible for murdering thousands of Americans and orchestrating a global ...
|More News » |