Europa, the ice-covered moon of the planet Jupiter, may be able to support life. NASA has commissioned a team of expert scientists to consider the science goals for a landed spacecraft mission to the surface of Europa, and to investigate the composition and geology of its icy shell and the potential for life within its interior ocean.
Astrobiology, led by Sherry L. Cady, Ph.D., and a prominent international editorial board comprised of esteemed scientists in the field, is the authoritative resource for the most up-to-date information and perspectives on exciting new research findings and discoveries emanating from interplanetary exploration and terrestrial field and laboratory research programs.
Credit: © Mary Ann Liebert, Inc., publishers
The NASA-appointed Science Definition Team outlines the main priorities of a future lander mission to Europa to study its potential habitability in an article in Astrobiology, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is available free on the Astrobiology website.
The article "Science Potential from a Europa Lander" presents the three main objectives of a future mission designed to land a robotic spacecraft on the surface of Europa and to investigate its potential to support life. NASA's Science Definition Team has clearly identified three main priorities: investigate the composition and chemistry of Europa's ocean; characterize the thickness, uniformity, and dynamics of its icy shell; and study the moon's human-scale surface geology. In addition, the NASA-appointed team describes the types of studies and payload of instruments recommended to achieve these objectives.
R.T. Pappalardo and a large group of coauthors contribute a broad range of knowledge and expertise and represent leading government and academic institutions, including NASA's Jet Propulsion Laboratory, managed by the California Institute of Technology (Pasadena), University of Colorado (Boulder), University of Texas at Austin, NASA's Goddard Space Flight Center (Greenbelt, MD), NASA's Ames Research Center (Moffett Field, CA), University of Iowa (Iowa City), NASA's Marshall Space Flight Center (Huntsville, AL), Southwest Research Institute (Boulder, CO), The Johns Hopkins University Applied Physics Laboratory (Laurel, MD), Arizona State University (Tempe), and Massachusetts Institute of Technology (Cambridge).
"Landing on Europa and touching its surface is a visionary goal of planetary science," says Robert Pappalardo, PhD of NASA's Jet Propulsion Laboratory. "This is a difficult technical challenge that is probably many years away. Understanding the key scientific questions to be addressed by a future Europa lander helps us to focus on the technologies required to get us there, and on the necessary data that might be attained by a precursor mission that could scout out landing sites. Europa is the most likely place in our solar system beyond Earth to have life today, and a landed mission would be the best way to search for signs of life."
"Landing on the surface of Europa is a key step in the astrobiological investigation of that world," says Christopher McKay, PhD, Senior Editor of Astrobiology and a scientist at NASA Ames Research Center, Moffett Field, CA. "The paper by Pappalardo et al. outlines the science that could be done by such a lander. The hope would be that surface materials, possibly near the linear crack features, include biomarkers carried up from the ocean."
Bill Schappert | EurekAlert!
Quantum optics allows us to abandon expensive lasers in spectroscopy
22.11.2017 | Lomonosov Moscow State University
Nano-watch has steady hands
22.11.2017 | University of Vienna
The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.
Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....
The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...
Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.
Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...
15.11.2017 | Event News
15.11.2017 | Event News
30.10.2017 | Event News
22.11.2017 | Business and Finance
22.11.2017 | Physics and Astronomy
22.11.2017 | Physics and Astronomy