They’re not a perfect match, but it’s way too hot on the first planet for us to hop over and confirm for ourselves.

The nights surrounding June 7 will see Jupiter and Mercury crowd together close to the horizon in the northwestern sky.

Mercury doesn't give up its secrets easily. The smallest planet in our solar system is also one of the most extreme—a sun-scorched, metal-rich world with a puzzling magnetic field and lavas ...

Mercury is the innermost and smallest of the eight planets. Outwardly, it bears a strong resemblance to Earth's Moon, but the planet differs considerably from it in terms of its structure and ...

Planets that will retrograde into December are Mercury, Mars, Jupiter, Uranus and Neptune. Retrograde calendar for 2024 and 2025 Mercury is in retrograde now through Dec. 15, the last for 2024.