Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky ...

Around 900 light-years away, a gas giant exoplanet unlike anything in our solar system is rewriting the rules of extreme ...

Astronomers for the first time have deciphered the three-dimensional structure of the atmosphere of a planet beyond our solar ...

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

When astronomers detected the first known interstellar object, 'Oumuamua, in 2017, it sparked a host of new studies trying to ...

New paper points to the Alpha Centauri triple star system as likely potential source of millions of interstellar asteroids and comets.

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in February.

The planetary parade in February 2025 will see five bright planets in clear view and a special alignment of Mercury and Saturn ...

Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.