Mercury, the smallest planet in the solar system, holds an outsized secret that some researchers believe could reshape how ...

NASA's Mercury-orbiting spacecraft, Messenger, is going out with a bang this week, adding a hefty crater to the little planet closest to the sun. The first spacecraft to circle Mercury, Messenger is ...

Mercury has long been cast as the solar system’s burnt-out rock, a relic too small and too close to the Sun to hold many ...

What type of impact created Mercury’s giant core and thin crust? This is what a recent study published in Nature Astronomy hopes to address as a team of scientists investigated the impact processes ...

Those were the words Alan Shepard used 60 years ago Wednesday to note his cockpit timepiece had begun running. This meant his Redstone rocket booster had left the ground sending him and his one-man ...

VANDENBERG SPACE FORCE BASE, CA – November 28, 2025 – Proteus Space announced the successful launch and first contact of MERCURY ONE, its inaugural four-payload ESPA class spacecraft. MERCURY ONE ...

Mercury puts on its best evening show of 2026 this February, with bright views after sunset and a helpful crescent moon.

This quiz will explore the facts, the fun and the fascinating quirks of our solar system's speedster. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...