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Songbirds' reproductive success reduced by natural gas compressor noise


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IMAGE: Both bluebirds and tree swallows, like this one, nesting in noisy boxes spent less time incubating their eggs, had fewer eggs hatch and produced fewer young than their neighbors nesting.
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Credit: Julian Avery, Penn State
Some songbirds are not dissuaded by constant, loud noise emitted by natural gas pipeline compressors and will establish nests nearby. The number of eggs they lay is unaffected by the din, but their reproductive success ultimately is diminished.
That s the conclusion of a team of Penn State researchers who conducted an innovative, elaborate study that included unceasing playback of recorded compressor noise, 80 new, never-before-used nest boxes occupied by Eastern bluebirds and tree swallows, and behavioral observations with video cameras placed within boxes. ....

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4 Seniors Receive NASA Undergraduate Research Fellowship Awards


February 12, 2021
Kimberly Paragas ’21,
Molly Watstein ’21, and
Mason Tea ’21 each received a $5,000 Undergraduate Research Fellowship for their ongoing research. They’re among only seven students statewide to receive the honor.
“I have never seen an institution be so successful at these very competitive grants, and was so proud and impressed by the student applicants,” said
Paragras is working with Redfield on her project titled “Gas Giant Atmospheric Mass Loss.” According to the abstract, “Atmospheric mass loss is one of two aspects that influence the evolution of planets, making it essential for understanding their origin. The helium 1083 nm line offers insight into the atmospheric escape of close-in exoplanets, which significantly sculpts their population. This project aims to detect excess helium absorption in the atmosphere of the gas giant HAT-P-18b and estimate its present-day mass loss rate by using transit observations taken with ....

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first organic molecules


This image of Saturn s icy, geologically active moon Enceladus was acquired by NASA s Cassini spacecraft during its October 2015 flyby. Enceladus hides a global ocean of liquid salty water beneath its crust and might also have hydrothermal vents not unlike the hydrothermal vents that dot the ocean floor here on Earth.
NASA/JPL-Caltech/Space Science Institute
 
New research led by the American Museum of Natural History and funded by NASA identifies a process that might have been key in producing the first organic molecules on Earth about 4 billion years ago, before the origin of life. The process, which is similar to what might have occurred in some ancient underwater hydrothermal vents, may also have relevance to the search for life elsewhere in the universe. Details of the study are published this week in the journal ....

United States , University College , Shawne Mcglynn , Mari Strandoo Rodin , Dieter Braun , Yoichi Ma Yamada , Reuben Hudson , Ryuhei Nakamura , Aya Ohno , University College London , Propulsion Laboratory , Museum Gerstner Scholar Victor Sojo , European Molecular Biology Organization , Maine Space Grant Consortium , Tokyo Institute Of Technology , National Institutes Of Health Institute , Ludwig Maximilians University , American Museum Of Natural History , Proceedings Of The National Academy Sciences , Gerstner Family Foundation , Institute For Advanced Study , Japan Society For The Promotion Of Science , College Of The Atlantic , Us National Science Foundation , American Museum , Natural History ,