Researchers using the Hubble Space Telescope have discovered water vapor in the atmosphere of planet K2-18b, located about ...

Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles ...

This vapor formed a disc around the Earth that eventually cooled and clumped together to become the moon. We know this thanks to rigorous studies of meteorites and rock samples, including at the ...

New molecules discovered on a faraway exoplanet have given scientists the “strongest evidence yet" that life may exist beyond ...

Given the seeming paucity of moisture in the leftover remains of Earth's building blocks, planetary scientists have long ...

Rising global temperatures are driving the sharp decline in terrestrial water storage. This trend isn’t likely to change, scientists say.

This same effect happens every day on the Earth. Gases within the atmosphere act like glass, trapping the sun's heat. These gases include water vapor, carbon dioxide, methane, nitrous oxide ...