We know that our Solar System is not the blueprint for all planetary systems out there. There are gas giant planets orbiting closer to their stars than Mercury, and rocky worlds much larger than Earth ...

An artist's impression of the planetary system surrounding LHS 1903, a small red dwarf star cooler and dimmer than our Sun. (European Space Agency) (CN) — For decades, astronomers thought they had ...

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New research uses laboratory experiments to demonstrate that water is naturally created during the planet formation process. By squeezing and heating planetary analog materials between the tips of two ...

A team of international astronomers has uncovered what may be a gas giant planet forming around a distant young star. Using the powerful Very Large Telescope in Chile, they captured dazzling ...

A nearby Earth-sized planet offers a rare chance to study how atmospheres survive or disappear on rocky worlds.