Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

Mercury, our smallest planetary neighbor, has very little to call an atmosphere, but it does have a strange weather pattern: morning micro-meteor showers. Recent modeling along with previously ...

A European-Japanese space mission will reach Mercury in 2026, carrying instruments designed to answer a question that has ...

WASHINGTON (Reuters) - Astronomers have searched for years for rocky planets beyond our solar system with an atmosphere - a trait considered essential for any possibility of harboring life. Well, they ...

WASHINGTON (Reuters) - Astronomers for the first time have deciphered the three-dimensional structure of the atmosphere of a planet beyond our solar system, revealing three layers like a wedding cake ...

JWST observations of the ultra-hot super-Earth exoplanet TOI-561 b provide the strongest evidence to date for an atmosphere surrounding a rocky planet beyond our Solar System.