One week ago, the MESSENGER spacecraft transmitted to Earth the first high-resolution image of Mercury by a spacecraft in over 30 years since the three Mercury flybys of Mariner 10 in 1974 and 1975.

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 ...

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 ...

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, ...

A recent theory has emerged suggesting that the answer to Mercury’s unusually large metallic core may lie in the early ...