Mercury's movements give scientists peek inside the planet

The first measurements of Mercury's movements from a spacecraft orbiting the planet reveal new insights about the makeup of the solar system's innermost world and its interactions with other planetary bodies.

Comet dust—planet Mercury's 'invisible paint'

A team of scientists has a new explanation for the planet Mercury's dark, barely reflective surface. In a paper published in Nature Geoscience, the researchers suggest that a steady dusting of carbon from passing comets has ...

Evidence for active hollows formation on Mercury

A recent image acquired by NASA's MESSENGER spacecraft shows the interior of Eminescu, a youngish 130-km (80 mile) wide crater just north of Mercury's equator. Eminescu made science headlines last year with MESSENGER's discovery ...

Explosive volcanoes light up Mercury's deep past

Mercury has long been a mystery to scientists. Until recently, knowledge of the planet was limited to the grey, patchy landscape revealed by the Mariner 10 probe, NASA's first mission to Mercury in the mid-1970s.

Fantastic Voyage

By travelling to the outer solar system, the two Voyager spacecraft allowed us to see amazing details of far-distant planets and moons.

Sunset Planet Alert

The solar system's innermost planets are about to put on a beautiful show.

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