The solar system is our cosmic neighborhood, made up of the sun and everything that orbits it — planets, moons, asteroids, comets, and even dust and gas. The order of the planets in the solar ...

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

They reveal a whole new level of detail in these planet-forming systems. Breakthroughs, discoveries, and DIY tips sent every ...

Astronomers have detected a promising sign of a ninth planet lurking at the the farthest reaches of the Solar System.

Earth" planet was discovered by researchers. It is not believed these planets are more common than previously thought.

But it's the hottest planet in the solar system. But why? It has to do with Venus' atmosphere, made up of 96% carbon dioxide, which is a greenhouse gas that ... traps all the sunlight that manages ...

To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of ...

The University of Arizona has utilized state-of-the-art Magellan Adaptive Optics Xtreme technology to observe the PDS 70 ...

This artist’s illustration provided by the European Southern Observatory shows an exoplanet orbiting around two brown dwarfs, celestial objects that are lighter than stars, but heavier than gas giant ...

Our solar system may have a ninth planet after all, researchers say. The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago.