
uncertainties from CROSS SECTIONS
... Antiprotons are produced in the Galaxy by fragmentation of proton and He (and marginally heavier nuclei) on the ISM (secondary antiprotons). These antiprotons would be the background to an exotic component due to ...
... Antiprotons are produced in the Galaxy by fragmentation of proton and He (and marginally heavier nuclei) on the ISM (secondary antiprotons). These antiprotons would be the background to an exotic component due to ...
PowerPoint-Präsentation - Max-Planck
... lower rate than starlight. To collect enough gamma rays to diagnose what is happening inside a cosmic particle accelerator, one needs to point the telescopes at this source for many hours; in extreme cases, data for one celestial object may be accumulated for several hundred hours. The H.E.S.S. tele ...
... lower rate than starlight. To collect enough gamma rays to diagnose what is happening inside a cosmic particle accelerator, one needs to point the telescopes at this source for many hours; in extreme cases, data for one celestial object may be accumulated for several hundred hours. The H.E.S.S. tele ...
KEY - Cobb Learning
... Introduction: Thousands of different types of bacteria are known and have been observed, and there are possibly many more that have not yet been observed. How can a scientist tell these organisms apart when they are so small? One way is the bacteria's characteristic shape or pattern of joining toget ...
... Introduction: Thousands of different types of bacteria are known and have been observed, and there are possibly many more that have not yet been observed. How can a scientist tell these organisms apart when they are so small? One way is the bacteria's characteristic shape or pattern of joining toget ...
downloading
... Local averaging of narrow frequency bands • In most astrophysical plasmas we are only interested in modeling the interaction of the radiation field with hydrogen and helium. As a result we are only interested in calculating the specific intensity at frequencies capable of ionizing HI, HeI, and HeII ...
... Local averaging of narrow frequency bands • In most astrophysical plasmas we are only interested in modeling the interaction of the radiation field with hydrogen and helium. As a result we are only interested in calculating the specific intensity at frequencies capable of ionizing HI, HeI, and HeII ...
by Mort La Brecque The solar system`s inner, terrestrial
... probably made of rock and ice. The composition of Pluto is a distinct oddity compared to all the other planets in the outer solar s y s t e m Neptune, Uranus, Saturn, and Jupiter. These are dense, principally gaseous giants (though it has recently been determined that each must contain the equivalen ...
... probably made of rock and ice. The composition of Pluto is a distinct oddity compared to all the other planets in the outer solar s y s t e m Neptune, Uranus, Saturn, and Jupiter. These are dense, principally gaseous giants (though it has recently been determined that each must contain the equivalen ...
Heat, salt, pressure, acidity - how `extremophile` bacteria are yielding
... the seas.’ Research by microbiologists suggests that more than 99 % of microbes are not yet known to scientists, with many of these species existing under extraordinarily challenging conditions that cannot be reproduced in the lab. It's life, but not as we know it. For a start, most deep-sea microbi ...
... the seas.’ Research by microbiologists suggests that more than 99 % of microbes are not yet known to scientists, with many of these species existing under extraordinarily challenging conditions that cannot be reproduced in the lab. It's life, but not as we know it. For a start, most deep-sea microbi ...
Photoprotection beyond Ultraviolet Radiation
... Obvious approaches against IRA radiation would be the use of chemical or physical filters, but currently there are no specific chemical or physical filters available against IRA and existing compounds have not been shown to possess IRA-filtering capacity. While it is unlikely that UV-specific filter ...
... Obvious approaches against IRA radiation would be the use of chemical or physical filters, but currently there are no specific chemical or physical filters available against IRA and existing compounds have not been shown to possess IRA-filtering capacity. While it is unlikely that UV-specific filter ...
Journal of the Amateur Astronomers Association of New York August
... will prepare humans for long-duration space travel and the eventual journey to Mars. Robotic missions will also provide reconnaissance information about asteroid orbits, surface composition, and even return samples to Earth for further evaluation. These are critical steps in preparing humans to visi ...
... will prepare humans for long-duration space travel and the eventual journey to Mars. Robotic missions will also provide reconnaissance information about asteroid orbits, surface composition, and even return samples to Earth for further evaluation. These are critical steps in preparing humans to visi ...
Information S1.
... numbered vials consisting of the dilutions in triplicates for each cell line DNA and 12 aliquots of SW46 DNA. A total of 3600 samples were sent to 40 laboratories. Extraction, dilution and distribution were centralized in one laboratory (UMR775, INSERM, Pr P. Laurent-Puig). The p.G12R cell line obta ...
... numbered vials consisting of the dilutions in triplicates for each cell line DNA and 12 aliquots of SW46 DNA. A total of 3600 samples were sent to 40 laboratories. Extraction, dilution and distribution were centralized in one laboratory (UMR775, INSERM, Pr P. Laurent-Puig). The p.G12R cell line obta ...
Formation of Solar System
... – Sizes of outer planets determined by amounts of H and He present at those distances (and amount of time available for accumulation before removed) ...
... – Sizes of outer planets determined by amounts of H and He present at those distances (and amount of time available for accumulation before removed) ...
Explore the Galaxy - Museum of Science
... First, they w ill observe each p lanet and the solar system as a w hole, record ing observations and looking for trend s or p atterns. Then they w ill narrow their focu s to ju st distance from the sun and temperature. They w ill record this d ata in a table and generate a sim p le grap h. Using thi ...
... First, they w ill observe each p lanet and the solar system as a w hole, record ing observations and looking for trend s or p atterns. Then they w ill narrow their focu s to ju st distance from the sun and temperature. They w ill record this d ata in a table and generate a sim p le grap h. Using thi ...
The Emergence of Chemical Complexity: An
... his distinguished mentor Harold Urey (17,18). Together they established the potential role of organic synthesis that occurred in Earth's primitive atmosphere and ocean as they were subjected to bolts of lightning and the Sun's intense radiation (Bada et a l , this volume). Molecules formed in inters ...
... his distinguished mentor Harold Urey (17,18). Together they established the potential role of organic synthesis that occurred in Earth's primitive atmosphere and ocean as they were subjected to bolts of lightning and the Sun's intense radiation (Bada et a l , this volume). Molecules formed in inters ...
EXPOSE

EXPOSE is a multi-user facility mounted outside the International Space Station dedicated to astrobiology. EXPOSE was developed by the European Space Agency (ESA) for long-term spaceflights and was designed to allow exposure of chemical and biological samples to outer space while recording data during exposure.The results will contribute to our understanding of photobiological processes in simulated radiation climates of planets (e.g. early Earth, early and present Mars, and the role of the ozone layer in protecting the biosphere from harmful UV-B radiation), as well as studies of the probabilities and limitations for life to be distributed beyond its planet of origin. EXPOSE data support long-term in situ studies of microbes in artificial meteorites, as well as of microbial communities from special ecological niches. Some EXPOSE experiments investigated to what extent particular terrestrial organisms are able to cope with extraterrestrial environmental conditions. Others tested how organic molecules react when subjected for a prolonged period of time to unfiltered solar light.