Detection of water vapor in the atmosphere of a hot jupiter

Although liquid water covers a majority of Earth's surface, scientists are still searching for planets outside of our solar system that contain water. Researchers at Caltech and several other institutions have used a new technique to analyze the gaseous atmospheres of such extrasolar planets and have made the first detection of water in the atmosphere of the Jupiter-mass planet orbiting the nearby star tau Boötis.

Hubble telescope spots evidence of water vapor venting off Jupiter moon

ASA’s Hubble Space Telescope has observed water vapor above the frigid south polar region of Jupiter's moon Europa, providing the first strong evidence of water plumes erupting off the moon's surface.

New polymer harvests energy from water vapor

MIT engineers say they've found a way to generate electricity just by drawing on the water vapor in the air.