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

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

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

Along with other recent discoveries, the new finding from Perseverance boosts the case that Mars once hosted conditions that ...

Astronomers may have demoted Pluto from full-fledged planet to dwarf status, but evidence suggests the solar system may still host a mysterious ninth planet — far beyond Neptune, cloaked in shadow and ...

Credit: NASA/Daniel Rutter There are planets that make Earth look small. And then there are planets like TOI-791 b and ...

The International Astronomical Union defines a planet as a celestial body that orbits the sun, is massive enough that gravity has forced it into a spherical shape, and has cleared away other objects ...

Scientists have discovered a giant planet orbiting a tiny red dwarf star, something they believed wasn t even possible. The planet, TOI-6894b, is about the size of Saturn but orbits a star just a ...

NASA wants to send an ambitious fleet of helicopters to soar through Martian skies—but scientists fear the endeavor could ...

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 ...