Everyone's favorite dwarf planet, Pluto, was discovered just 95 years ago. Here's the story of how the once-ninth planet was ...

The world of Sailor Moon does not just relate to our own solar system, but the many unknown planets from the original story ...

The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

All planets are made of gas, ice, rock and metal, and models of how planets form usually assume that these materials don't ...

Venus—a hot planet pocked with tens of thousands of volcanoes—may be even more geologically active near its surface than ...

Mar. 17, 2025 — The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away ...

Yet despite the drumbeat of evidence, we still know of just one planet in the cosmos with life — the one you’re standing on.

We often focus on space observatories that peer beyond Earth. But the vast majority of satellites stare right back at us.

Future missions to Venus could also supply additional data on the density and temperature of the planet's crust, which could ...

Back in 1969, when Neil Armstrong and Buzz Aldrin first set foot on the moon, scientists knew of just 31 other moons in our ...