How common are Earth-like planets in the universe? When I started working on supernova explosions, I never imagined that my ...

The James Webb Space Telescope has delivered its clearest signal yet that a rocky planet outside our solar system is wrapped ...

Updated models suggest only 60,000 to 250,000 Earth-like habitats may exist in the Galaxy, with far fewer capable of ...

The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...

An ultra-hot rocky exoplanet may be wrapped in a dense atmosphere, defying expectations about what small planets can sustain.

Rocky planets like our Earth may be far more common than previously thought, according to new research published in the ...

This is the strongest evidence yet of a rocky planet beyond our solar system with an atmosphere. Astronomers using the James ...

A groundbreaking new study of small, rocky extrasolar planets has made a tentative statistical correlation between the planets’ chemical makeup and their parent stars’ birthplace within our Milky Way ...

A team of researchers from the University of Zurich and the NCCR PlanetS is challenging our understanding of the solar system planets' interior. The composition of Uranus and Neptune, the two ...

This 2018 artist's concept shows what the TRAPPIST-1 planetary system may look like, based on available data about the planets' diameters, masses and distances from the host star (far left). New ...

The Sun's formation caused temperature differences in the surrounding disk of gas and dust. Inner, hotter regions formed rocky planets from less volatile elements. Outer, colder regions allowed ...

Earth's deep mantle stored enough water in rocks to equal one ocean during our planet's early molten days, helping explain ...