On a quest to understand how planets are formed – and ultimately how Earth fits into the cosmic picture – astronomers have ...

The tiny pebbles left over from a star's formation fed the growth of one of the strangest, wildest worlds humanity has ever ...

The chemical composition of WASP-121b suggests that it formed in a cool zone of its natal disc, comparable to the region of gas and ice giants in our Solar System. Methane indicates unexpected ...

Exoplanet science is shifting from finding any detectable exoplanets we can to searching for those in their stars' habitable ...

Astronomers have detected silicon monoxide gas in the atmosphere of a planet 850 lightyears from Earth, the first time the ...

Scientists analyzing an ultra-hot giant planet believe it was formed by absorbing lightweight gases like methane evaporating ...

For now, complex life flourishes on our planet thanks to its supply of oxygen. But Earth's atmosphere wasn't always like it ...

Researchers were surprised to find giant gas planets orbiting quite near to their stars. Yet novelists had already imagined ...

A NASA-funded plan to build a large radio telescope on the moon's far side is nearing final approval and could become a ...

In the search for planets beyond our solar system, many scientists focus on finding worlds that could support life. But ...

A massive exoplanet 750 light-years away is shrouded in near-total darkness—its atmosphere so black, it reflects almost no ...