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Space sciences/Astronomy/Celestial bodies/Planetary bodies

Scientists have detected an underground reservoir of liquid that may be saltwater under Mars' southern polar ice cap.
The moths' visual processes slow down in low light so that the insects can keep track of wind-tossed flowers that provide nectar.
In the past decade, scientists have learned enough about protein folding to design their own proteins with new structures and functions.
NASA's MESSENGER mission to Mercury needs your help naming geological features on the planet's surface!

The study provides the first isotopic evidence that the moon formed from a collision between Earth and a mysterious planetary object.