As more of the solar system has been explored and imaged, all kinds of geographical features have been mapped on many of our ...

If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

Mar. 17, 2025 — A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new ... Webb Telescope Captures Its ...

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

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

Researchers say they found a curious dot on infrared images taken 23 years apart that seems to be moving in a manner ...

Science textbooks may be in for another revision. Our solar system shrank from nine planets to eight after the International Astronomical Union demoted Pluto in 2006. But there may yet be ...

Until relatively recently, the focus for Nasa's search for life was Mars, but that began to change in 1992 with the discovery of the first planet orbiting another star outside of our solar system.