Meteoroid explodes over Russia without warning

A meteoroid exploded over the city of Lipetsk in western Russia last week without warning, lighting up the summer sky with a bright flash. While some enjoyed the light show, others are worried that we didn't see it coming.

Wave beams mix and stir the ocean to create climate

Ocean circulation patterns have a profound effect on global climate. Waves deep within the ocean play an important role in establishing this circulation, arising when tidal currents oscillate over an uneven ocean bottom. ...

NASA team pursues blobs and bubbles with new PetitSat mission

Figuring out how plasma bubbles and blobs affect one another and ultimately the transmission of communications, GPS, and radar signals in Earth's ionosphere will be the job of a recently selected CubeSat mission.

New ocean observations improve understanding of motion

Oceanographers commonly calculate large scale surface ocean circulation from satellite sea level information using a concept called "geostrophy", which describes the relationship between oceanic surface flows and sea level ...

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