The hunt for worlds beyond our solar system has shifted from counting planets to confronting extremes that strain basic ...

New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unknown.

In astronomy, there is a concept called "degeneracy." It has nothing to do with delinquent people, but instead is used to describe data that could be interpreted multiple ways. In some cases, that ...

Left: Artistic conception of the longheld astronomical assumption of brown dwarfs resembling Jupiter in appearance, displaying prominent multiple zonal bands and stable vortices similar to the Great ...

From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet that's got everyone talking, 2025 has been jam-packed with astronomical ...

SANTA CRUZ — Xi Zhang, a professor of Earth and planetary science at UC Santa Cruz, has discovered that an exoplanet classed as a “super-Jupiter” has substantial differences from our solar system’s ...

The search for life beyond our solar system heated up this year when scientists reported a tantalising signal from an exoplanet of a molecule that is known to be produced exclusively by life on Earth.