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(CNN) -- The James Webb Space Telescope has detected water vapor around a rocky exoplanet that orbits a star located 26 light-years away from Earth. Now, astronomers are trying to determine whether ...

What happens when a planet contains immense quantities of water but is far too hot for that water to remain liquid?

The hunt for habitable exoplanets is on, and with the James Webb Space Telescope, we finally have a tool that can not only detect the presence of a planet in another star system, but can also look at ...

Scalding hot water vapor has been discovered in the atmosphere of an aging star, surprising scientists who thought the chemistry of such stars would forbid it. Water exists as a gas at a scorching ...

You don't have to be a scientist to understand that water is essential for the existence of life as we know it. In its liquid form, it is not only one of life's building blocks but one of its fuel ...

Jack Knudson is an assistant editor for Discover Magazine who writes articles on space, ancient humans, animals, and sustainability, and manages the Planet Earth column of the print issue. View Full ...

A scorching-hot gas planet beyond our solar system is steaming up with water vapor, according to new observations from NASA's Spitzer Space Telescope. A scorching-hot gas planet beyond our solar ...