Mercury (planet)
First planet from the Sun
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Mercury is the first planet from the Sun and the smallest in the Solar System. It is a terrestrial planet with a heavily cratered surface due to overlapping impact events. These features are well preserved since the planet has no geological activity and an extremely tenuous atmosphere called an exosphere. Despite being the smallest planet in the Solar System with a mean diameter of 4,880 km (3,030 mi), 38% of that of Earth, Mercury is dense enough to have roughly the same surface gravity as Mars. Mercury has a dynamic magnetic field with a strength about 1% of that of Earth's and has no natural satellites.
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First images of Mercury captured by joint European and Japanese spacecraftA space mission jointly launched by the European and Japanese space agencies has captured its first views of the planet Mercury during a "flawless" flyby.Sky News - Published |
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