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Did heat from impacts on asteroids provide the ingredients for life on Earth?

A research group from Kobe University has demonstrated that the heat generated by the impact of a small astronomical body could enable aqueous alteration and organic solid formation to occur on the surface of an asteroid. These results have significantly increased the number of prospective astronomical bodies that could have brought water and the origins of life to Earth. ....

United Kingdom , Masahiko Arakawa , Minami Yasui , Kazunori Ogawa , Taku Tazawa , Yasui Minami , Arakawa Masahiko , Ryohei Hashimoto , Institute Of Space , Environment Nature Publishing Group On , Research Methodology , Sumitomo Foundation , Space Exploration Center , Kobe University Faculty Of Science , Kobe University Graduate School Of Science , Kobe University , Communications Earth , Research Background , Space Exploration Center Associate Senior Researcher , Graduate School , Exploration Center , Associate Senior Researcher , Nature Publishing Group , Hypervelocity Impact Facility , Astronautical Science , Principle Investigator ,

Geostationary Earth Orbit Hyperspectral Infrared Radiance data improve local severe storm forecasts proofed by using a new Hybrid OSSE method

Scientists are developing data assimilation methods for Numerical Weather Prediction models that will increase the quality of initialization data from satellites. The Observing System Simulation Experiment (OSSE) is designed to use data assimilation to investigate the potential impact of future atmospheric observing systems. Traditional OSSE processes require significant effort to compute, simulate, and calibrate information, then assimilate the data to produce a forecast. Therefore, model meteorologists are working to make this process more efficient. ....

United States , Jun Li , University Of Wisconsin , Madison Cooperative Institute For Meteorological Satellite , Advances In Atmospheric Sciences , Observing System Simulation Experiment , Wisconsin Madison Cooperative Institute , Meteorological Satellite , Atmospheric Sciences , Fengyun Meteorological Satellites , Great Plains , Midwestern United States , Root Mean Square Error , Atmospheric Science , Earth Science , Space Planetary Science , Satellite Missions Shuttles , ஒன்றுபட்டது மாநிலங்களில் , ஜூன் லி , பல்கலைக்கழகம் ஆஃப் விஸ்கான்சின் , மாடிசன் கூட்டுறவு நிறுவனம் க்கு வானிலை செயற்கைக்கோள் , விஸ்கான்சின் மாடிசன் கூட்டுறவு நிறுவனம் , வானிலை செயற்கைக்கோள் , வளிமண்டலம் அறிவியல் , நன்று சமவெளி , மத்திய மேற்கு ஒன்றுபட்டது மாநிலங்களில் ,

Jets from massive protostars might be very different from lower-mass systems

A highly-detailed VLA image indicates that the jets of material propelled outward by young stars much more massive than the Sun may be very different from those ejected by less-massive young stars. ....

Alberto Sanna , Adriana Rodriguez Kamenetzky , Carlos Carrasco Gonzalez , National Radio Astronomy Observatory , Universities Inc , National Science Foundation , National Autonomous University Of Mexico , Science Foundation , Very Large Array , National Autonomous University , Osservatorio Astronomico , Associated Universities , Chemistry Physics Materials Sciences , Space Planetary Science , Stars The Sun , ஆல்பர்டோ சன்னா , தேசிய வானொலி வானியல் கண்காணிப்பு , பல்கலைக்கழகங்கள் இன்க் , தேசிய அறிவியல் அடித்தளம் , தேசிய தன்னாட்சி பல்கலைக்கழகம் ஆஃப் மெக்ஸிகோ , அறிவியல் அடித்தளம் , மிகவும் பெரியது வரிசை , தேசிய தன்னாட்சி பல்கலைக்கழகம் , தொடர்புடையது பல்கலைக்கழகங்கள் , வேதியியல் இயற்பியல் பொருட்கள் அறிவியல் ,

Front-row view reveals exceptional cosmic explosion

Scientists have gained the best view yet of the brightest explosions in the universe: A specialised observatory in Namibia has recorded the most energetic radiation and longest gamma-ray afterglow of a so-called gamma-ray burst to date. The observations with the High Energy Stereoscopic System (H.E.S.S.) challenge the idea of how gamma-rays are produced in these colossal stellar explosions which are the birth cries of black holes, as the international team reports in the journal Science. ....

United Kingdom , South Africa , La Palma , Canary Island , Stefan Wagner , Victor Franz Hess , Dmitry Khangulyan , Edna Ruiz Velasco , Andrew Taylor , Landessternwarte Heidelberg , Sylvia Zhu , High Energy Stereoscopic System , Rikkyo University , German Federal Ministry Of Education , Helmholtz Association , Max Planck Institute , Nuclear Physics , Cherenkov Telescope Array , Chilean Andes , Imaging Atmospheric Cherenkov Telescopes , Nobel Prize , German Federal Ministry , Chemistry Physics Materials Sciences , Space Planetary Science , Stars The Sun , ஒன்றுபட்டது கிஂக்டம் ,

A shark mystery millions of years in the making

The biggest shark attack in history did not involve humans.

A new study by Earth scientists from Yale and the College of the Atlantic has turned up a massive die-off of sharks roughly 19 million years ago. It came at a period in history when there were more than 10 times more sharks patrolling the world s oceans than there are today. ....

New York , United States , Elizabeth Sibert , Leah Rubin , Yale Institute For Biospheric , Planetary Sciences , Yale Department Of Earth , College Of The Atlantic , Yale Institute , State University , New York College , Environmental Science , Pincelli Hull , Earth Science , Space Planetary Science , புதியது யார்க் , ஒன்றுபட்டது மாநிலங்களில் , எலிசபெத் சிபெற்ட் , லியா ரூபின் , கிரகங்கள் அறிவியல் , யேல் துறை ஆஃப் பூமி , கல்லூரி ஆஃப் தி அட்லாண்டிக் , யேல் நிறுவனம் , நிலை பல்கலைக்கழகம் , புதியது யார்க் கல்லூரி , சுற்றுச்சூழல் அறிவியல் ,