Mercury is a planet that just doesn't make sense. It's incredibly small yet hosts a relatively massive core. Mercury is so strange that astronomers have not been able to explain its properties with ...

Pieces of Mercury may have been found on Earth, potentially allowing scientists to study the Solar System's innermost planet. While we have sent two spacecraft to Mercury – Mariner 10 and MESSENGER – ...

The elusive planet Mercury reaches its furthest point from the sun on Friday (Jan. 12), with this separation allowing skywatchers a chance to spot the tiny planet. The fact that Mercury is the closest ...

View of planet Mercury from space. Space, nebula and planet Mercury. This image elements furnished by NASA. A few evenings ago I found myself in a remote layby in Utah close to Canyonlands National ...

Ice, ice, baby — too cold, too cold. A recent spacecraft flyby over Mercury has experts believing that the planet closest to the sun has “frozen water” on its surface — and they’re excited to get a ...

A six-planet parade — sometimes called a planetary alignment — will adorn the pre-sunrise morning sky on Friday, Aug. 22, with four of them visible to the naked eye. Venus, Jupiter and Saturn will be ...

It may sound like finding a ski resort in the Amazon, but a team of scientists from the Planetary Science Institute claim to have found evidence that the super-hot planet Mercury has subterranean salt ...

So maybe YOU have seen the planet Mercury. But most people have not, or at least they have not realized they’ve seen it. In an extremely unscientific email poll of fifteen of my friends and relatives, ...

Analyses of data from the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft’s second flyby of Mercury in October 2008 show that the planet’s atmosphere, ...