The oozing of glacial material in the floating ice shell on Jupiters moon Europa has important implications for future exploration of the enigmatic moon and prospects of life in its ice-covered ocean, according to a University of Colorado at Boulder professor.
Europas enigmatic ridged surface is peppered by pits and spots termed lenticulae, which is Latin for freckles. In this area, the lenticulae are all about 6 miles in diameter. Their similar sizes and spacing suggest that Europas icy shell is churning away like a lava lamp: warmer ice moves upward from the bottom of the ice shell, while colder near-surface ice sinks downward. Reddish ice that erupts onto the surface may hold clues about the composition of Europas subsurface ocean, and whether that ocean supports life. Photo courtesy Jet Prolpulsion Laboratory
Robert Pappalardo, an assistant professor in the astrophysical and planetary sciences department and one of the worlds foremost Europa experts, said the icy moon is believed to contain an ocean some 13 miles under its icy surface. Satellite images appear to indicate surface warping -- including domes and reddish spots -- showing that "elevators" of sorts transport material up and down from the ocean to the surface, said the planetary scientist.
"Europa acts like a planetary lava lamp, carrying material from near the surface down to the ocean, and, if they exist, potentially transporting organisms from the ocean up toward the surface," he said. "Just a mile or two beneath the surface, the conditions may be warm enough to allow organisms to survive the journey."
Robert Pappalardo | EurekAlert!
UNH scientists help provide first-ever views of elusive energy explosion
16.11.2018 | University of New Hampshire
NASA keeps watch over space explosions
16.11.2018 | NASA/Goddard Space Flight Center
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
09.11.2018 | Event News
06.11.2018 | Event News
23.10.2018 | Event News
16.11.2018 | Health and Medicine
16.11.2018 | Life Sciences
16.11.2018 | Life Sciences