Research team describes the composition of asteroid Phaethon

Asteroid Phaethon, which is five kilometers in diameter, has been puzzling researchers for a long time. A comet-like tail is visible for a few days when the asteroid passes closest to the sun during its orbit.

Deserts 'breathe' water vapor, study shows

Deserts may seem lifeless and inert, but they are very much alive. Sand dunes, in particular, grow and moveā€”and according to a decades long research project, they also breathe humid air.

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