Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

Until not many years ago, scientists didn’t think planets could exist around a pair of stars. The complications from the ...

In the early days of our solar system, when the Sun was still young and the planets were barely formed, Jupiter wasn’t the ...

The sun has had quite a busy week hurling solar flares at our planet, causing blackouts across the globe. “After weeks of ...

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

The fundamental building blocks for planet formation can exist even in environments with extreme ultraviolet radiation, according to a new study by an international collaboration led by Penn State ...

At the center is the sun, a yellow dwarf star ... from the eight major planets to dwarf planets, comets, asteroids, and icy objects — revolves around it. The solar system also includes the ...

An international team from Taiwan, Japan, and Australia used 40 years' worth of data from two space probes to track down what they believe are signs of this distant planet moving around our sun.

Scientists examined infrared space surveys to narrow down candidates for Planet 9. Planet 9 would be so far from the Sun that it is just not illuminated by much sunlight. The two space surveys, ...

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

Plato, the European Space Agency's terrestrial planet hunter spacecraft, is seen after having 24 of its 26 cameras installed.