Technical Challenges and Barriers Affecting Turbo-Electric and Hybrid Electric Aircraft Propulsion

Abstract: In order to meet aggressive aircraft performance goals set by NASA's Aeronautics Research Mission Directorate,…

Effects of Aircraft Health on Airspace Safety

Abstract: This manuscript investigates the effects of aircraft health on the surrounding airspace, and proposes a…

Quantitative Daily Maps of PM 2.5 Episodes for California and Other Regions: Satellite Column Water and Optical Depth as Allied Tracers of Dilution [STUB]

Abstract: The Western US and many regions globally present daunting difficulties in understanding PM 2.5 episodes.…

Juno shows Jupiter’s magnetic field is very different from Earth’s

A team of researchers affiliated with several institutions in the U.S., including NASA and a pair…

Aeolus: Space laser starts chasing the wind

The British-built Aeolus satellite begins firing its laser down on Earth to map the planet's winds.

Global warming—worrying lessons from the past

Fifty-six million years ago, the Earth experienced an exceptional episode of global warming. In a very…

Greener neighborhoods may be good for children’s brains

Children living in urban greener neighborhoods may have better spatial working memory, according to a new…

Global warming: Worrying lessons from the past

56 million years ago, the Earth experienced an exceptional episode of global warming. Within 10 to…

Common pesticide inhibits brain development in frogs

New research reveals that low doses of a commonly used pesticide potentially harm the Northern Leopard…

Pros and cons of hydropower

Hydropower can generate electricity without emitting greenhouse gases but can cause environmental and social harms, such…