01/04/2022

First audio recorded on Mars reveals two speeds of sound

The first audio recordings on Mars reveal a quiet planet with occasional gusts of wind where two different speeds of sound would have a strange delayed effect on hearing, scientists said Friday.

Light pollution increasing year-round for some migrating birds

Nighttime light pollution levels are increasing the most in the southeastern United States, Mexico, and Central America—findings based on year-round data collected over the last two decades in the Western Hemisphere. This ...

Scientists develop environmentally safe, frost-resistant coatings

Airports are busy, especially during the winter. As passengers wait to board, delays get longer when airplanes need to be dowsed with thousands of gallons of deicing fluids that help them fight the frigid winter. But as soon ...

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