A pair of sibling gas giants originally spotted by citizen scientists are so lightweight that their density resembles wispy ...

A gas giant planet called WD 1856b, orbiting the burned-out core of a dead, sun-like star. “It was unlike any other exoplanet spectrum we’ve seen,” ...

There are planets that make Earth look small. And then there are planets like TOI-791 b and TOI-791 c; two enormous worlds ...

For over 10 years, scientists have been decoding the mysterious atmosphere of a famous “Pink Planet.” Now, thanks to ...

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 ...

As the United States prepares to celebrate its 250th anniversary, the history of the solar system tells its own story of ...

Astronomers have discovered that aging stars may be devouring their closest giant planets as they swell into red giants. Using NASA’s TESS telescope to study nearly half a million stars, scientists ...

NEW YORK — Six planets are hanging out in the sky this month in what’s known as a planetary parade. Catch the spectacle while you can because it’s the last one of the year. These linkups happen when ...

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 ...