The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

When an exoplanet is discovered, scientists are quick to describe it and explain its properties. Now, we know of thousands of ...

Astronomers have made a groundbreaking discovery in the WASP-132 system, finding two new planets that defy previous ...

In astrology, the outer planets such as Uranus, Neptune, and Pluto are often associated with generational change and ...

and these materials combined together to form the inner planets. The outer four planets (Jupiter, Saturn, Uranus, and Neptune) are called gas giants. When the solar system formed, gaseous ...

Exoplanets have captured the imagination of the public and scientists alike and as the search continues for more, researchers ...

Recent studies have revealed that, until now, Hot Jupiters seem to be the only planet in orbit around their host star. This ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

until more dwarf planets were discovered and it was reclassified. There are many comets in the outer solar system. Comets are icy objects, which orbit the sun at very large distances. Halley's ...

Planets with suns like Wolf 359 are subject to huge blasts of radiation that raise questions about their long-term ...