“Only a handful of these super-puffy planets are known, and it is even rarer to find two in the same system,” George ...

A groundbreaking super-puff planet discovery has revealed two giant exoplanets with densities below cotton candy, changing ...

A pair of giant planets circling a star more than 1,100 light-years from Earth looks almost too bloated to be real. Each ...

Forbes contributors publish independent expert analyses and insights. Leslie Katz covers the intersection of culture, science and tech. A yellowish-orange glow bathes Phainoterra, a planet of dramatic ...

Astronomers have found evidence of a process that supports an alternative, more rapid approach to planetary formation, more top down than bottom up. By Katrina Miller When it comes to making a planet, ...

I’m a planetary scientist who was born the year of Sputnik’s launch. Over the course of my 40-year career, I’ve witnessed not one but at least five separate revolutions that fundamentally transformed ...

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Astronomers spotted a potential Earth-size rocky world orbiting a white dwarf, suggesting a future in which our planet outlives its star. By Jonathan O’Callaghan In six billion years the sun will ...

WASHINGTON, April 22 (Reuters) - Astronomers have spotted a small rocky planet that orbits perilously close to its host star disintegrating as its surface is vaporized by stellar heat, trailed by a ...

Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen giant planet. "This is the 5th largest planet in our solar system, lurking out there, waiting to ...

Tylos (or WASP-121b) is a gaseous, giant exoplanet located some 900 light-years away in the constellation Puppis. Astronomers have used four massive telescopes in Chile to look into a planet's ...

Astronomy.com: We were going to write something new about Pluto here. But Astronomy Magazine editor Dave Eicher has already done the heavy lifting. Before we get to the experts here’s how Dave ...