Mercury has been shrinking since it formed in our solar system's early days. New evidence, though, suggests it used to be much larger than we thought.

Scientists have discovered that Mercury’s surface contains far less silicon dioxide than previously thought, pointing to an unexpectedly hot volcanic past. The finding suggests ancient lava may have originated from deeper,

On Sept. 10, savvy Mercury will slip into harmony-seeking Libra, shifting the collective mindset toward compromise, diplomacy and relationships

Wrinkles on the surface of Mercury have revealed that the closest planet to the sun is shrinking faster than scientists thought.

Mercury is closer to the Sun, but Venus is the solar system's hottest planet. Venus possesses an extremely dense carbon dioxide atmosphere which acts as a heat blanket. This atmosphere traps absorbed solar energy,

Scientists found that Mercury's roughest terrain may conceal ancient cliffs, suggesting the planet shrank substantially more than estimates showed.

Mercury may be shrinking much faster than we thought — and that could reveal new clues about its violent origins.

As it cooled, Mercury contracted more than previously thought. A research team has determined this, expecting further corrections.