The four planet-strong "planet parade" currently visible to the naked eye in the night sky for a short time after sunset will ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

Among the roughly 10 billion white dwarf stars in the Milky Way galaxy, a greater number than previously expected could ...

Researchers believe they have rediscovered a mysterious star system first spotted in 2011. If true, the alien sun and its ...

If you're looking to impress your friends with some rare space facts, these gems will serve you well. The Largest Known Star ...

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

Worlds Part II was officially announced on January 29 and it takes the game’s already expansive universe to new heights with the inclusion of new star systems and new planets. The update is now ...

The 2025 Planet Parade, visible from January 21 to January 29, showcases the rare alignment of six major planets: Mercury, Venus, Mars, Jupiter, Saturn, and Uranus. This celestial event can be ...

Here’s how it works. This month, six planets in the solar system — Mars, Jupiter, Uranus, Venus, Neptune and Saturn — will appear in Earth's skies in a "parade of planets." Although the dark ...