Space mission tests NREL perovskite solar cells

On a clear night, Kaitlyn VanSant will be able to watch her work whiz by. Knowing the success of her project, however, will have to wait until her tiny, temporary addition to the International Space Station returns to Earth.

New instrument to measure atmospheric ammonia

In the past decades, intensive human agricultural activities have caused a significant increase in ammonia (NH3) emissions to the atmosphere, which have led to serious environmental and public health problems.

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