Kosmos-482, a spacecraft bound for Venus in 1972, was a time capsule from the Cold War when superpowers had broad ambitions for exploring the solar system.

Astronomer Eliza Kempton said that she had waited her "entire career" to peer into an atmosphere from this mysterious class of planets.

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?

At a frigid -125 degrees Fahrenheit (-87 degrees Celsius), WD 1856+534 b is the coldest planet ever directly observed, surpassing the previous record-holder, Epsilon Indi Ab, which stands at around 35 ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

A team of astronomers claims to have sniffed out a “biosignature” in the atmosphere of a distant planet called K2-18b. But ...

these planets’ orbits are roughly on the same plane as the binary stars’ orbit around each other. Before the recent discovery, scientists had only theorized the existence of such a system with ...

🌍 A 3D solar system simulation built with Three.js. Includes animated orbits, textured planets and moons, interactive camera controls, and a space background using a cube map.

Once the quirky underdog of our solar system, Pluto held planetary status until 2006 ... Pluto checks the first two boxes, it orbits the sun and is round, but it fails the third.

Unlike Mercury, though, this planet orbits in such a tight orbit around its host star that a year there lasts just over 30 hours. Being that close to the star means that the temperatures there ...