Mercury, the smallest and second densest planet, orbits the Sun in 88 Earth days, yet its solar day is 176 Earth days. Despite its proximity to the Sun, Mercury exhibits a significant temperature ...

The MESSENGER spacecraft has shown scientists that Mercury doesn't conform to theory. Its surface material composition differs from both those of the other terrestrial planets and expectations prior ...

View of planet Mercury from space. Space, nebula and planet Mercury. This image elements furnished by NASA. While Mars and Venus hog the headlines, what little attention our tiny planet Mercury gets ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. In the grand scheme of the Solar System, the greatest source of energy ...

In this column, we'll focus on the ecliptic, the invisible "racetrack" that hosts the sun, moon and planets. Knowing how it works and where to find it can make you a master planet spotter — you'll ...

The planet Mercury is dotted with holes that appear to be unlike any other landform yet seen in the solar system, new pictures show. High-resolution photographs from NASA's MESSENGER spacecraft ...

Mercury is covered with pits that are unlike anything else in the solar system, new observations from NASA’s Messenger spacecraft show. They may have been formed by processes still active today, and ...

Recent research indicates Mercury is shrinking, with its radius decreasing by 2.7 to 5.6 kilometers due to core cooling. This contraction forms thrust faults and scarps on the surface. A new ...

Mercury is the smallest planet in our solar system. It is also the planet closest to the Sun. A year on Mercury is short! One year on the planet Mercury is only 88 earth days. Mercury is an egg-shaped ...

Mercury, the smallest planet in our solar system, has captivated scientists due to its extreme temperatures, dense iron-rich core, magnetic field, and distinctive geological features. Recent research ...