Tuesday 24 January 2017

How satellite data changed chimpanzee conservation efforts

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Chimpanzees are an endangered species and scientists and conservationists are turning to the NASA-US Geological Survey Landsat satellites to help bolster their efforts to preserve their forest homes.
via Science Daily
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Bursts of methane may have warmed early Mars

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The presence of water on ancient Mars is a paradox. There's plenty of geographical evidence that rivers periodically flowed across the planet's surface yet Mars should have been too cold to support liquid water at that time. Now, researchers suggest that early Mars may have been warmed intermittently by a powerful greenhouse effect. They found interactions between methane, carbon dioxide and hydrogen in the early Martian atmosphere may have created warm periods when the planet could support liquid water on the surface.
via Science Daily
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Dr. Margaret Meixner and Dr. Marc Postman Promoted to STScI Distinguished Astronomers


The Space Telescope Science Institute (STScI) in Baltimore, Maryland, has appointed Dr. Margaret Meixner and Dr. Marc Postman to the position of STScI Distinguished Astronomer. Distinguished Astronomer is the highest level of appointment on the tenure track at STScI and represents a rank commensurate with the highest level of professorial appointments at major universities.

Meixner's promotion recognizes her long-term contributions to research and service at STScI. She has led international teams to study the life cycle of dust in the Magellanic Clouds using the Hubble, Spitzer and Herschel space telescopes. Postman is being recognized for his long-term contributions to the study of the formation and evolution of galaxies and clusters of galaxies. He has led important research to determine how the environments of galaxies determine their shapes and how the most massive galaxies evolve.


via Hubble - News feed
http://hubblesite.org/news_release/news/2017-05

Micro spacecraft investigates cometary water mystery

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In September 2015, a team of astronomers successfully observed the entire hydrogen coma of the comet 67P/Churyumov-Gerasimenko, using the LAICA telescope onboard the PROCYON spacecraft. They also succeeded in obtaining the absolute rate of water discharge from the comet. Through our observations, we were able to test the coma models for the comet for the first time. This result is the first scientific achievement by a micro spacecraft for deep space exploration.
via Science Daily
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M78 and Orion Dust Reflections

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In the vast Orion Molecular Cloud complex, several bright blue nebulas are particularly apparent. Pictured here are two of the most prominent reflection nebulas - dust clouds lit by the reflecting light of bright embedded stars. The more famous nebula is M78, in the image center, cataloged over 200 years ago. To its left is the lesser known NGC 2071. Astronomers continue to study these reflection nebulas to better understand how interior stars form. The Orion complex lies about 1500 light-years distant, contains the Orion and Horsehead nebulas, and covers much of the constellation of Orion.

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