29/03/2019

NASA's Mars helicopter completes flight tests

Since the Wright brothers first took to the skies of Kill Devil Hill, North Carolina, Dec. 17, 1903, first flights have been important milestones in the life of any vehicle designed for air travel. After all, it's one thing ...

Expert explains key role of frogs in healthy ecosystems

Dr. Jodi Rowley explains why frogs are so vital for healthy ecosystems, how she is working to conserve them and the positive impact she has already made to the study of amphibians in Southeast Asia.

ESA and NASA to team up on lunar science

ESA Director of Human and Robotic Exploration, David Parker, and Associate Administrator for NASA's Science Mission Directorate, Thomas Zurbuchen, signed a Statement of Intent to coordinate joint science research about the ...

Experts discuss strengths and weaknesses of the Green New Deal

Eighty-six years ago, President Franklin Roosevelt delivered his first inaugural address to a nation mired in the Great Depression. Promising to "wage a war against the emergency," Roosevelt hinted at the New Deal to come: ...

How to free trapped radicals from carboxyl

The removal of carboxyl groups and the release of alkyl radical fragments from the tight binding of carboxyl groups are promising directions in organic synthesis, especially in drug synthesis. Various catalysts have been ...

Solar variability weakens the Walker cell

An international team of researchers from United Kingdom, Denmark, and Germany has found robust evidence for signatures of the 11-year sunspot cycle in the tropical Pacific. They analyzed historical time series of pressure, ...

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