Mercury is our solar system's smallest planet.
Chat with "Albert Einstein" using a Facebook Messenger chatbot, released just in time for the March for Science.
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Although NASA's MESSENGER spacecraft is dead, the Mercury mission's data lives on.
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Mercury may still rumble with earthquakes, or "mercuryquakes," according to evidence found in cliffs on the planet's surface.
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Mercury has a very diverse surface, with some areas boasting young-looking terrain and others that are heavily cratered, but scientists couldn't explain why the planet's surface had such stark differences — until now.
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A rare type of meteorite found on Earth may have been a critical ingredient in the geologic recipe that shaped the surface of Mercury, new research shows.
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NASA's Messenger mission spent several years mapping Mercury, which was poorly understood for decades.
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A stunning digital model of Mercury unveils the planet's striking landscape, while other new maps provide a closer look at the shadowed northern pole and reveal the highest and lowest points on the closest planet to the sun.
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The planet Mercury is making its way across the face of the sun (as seen from Earth) in a rare transit event today (May 9). See our first video of the sight from NASA's Solar Dynamics Observatory.
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The first global digital elevation model (DEM) of Mercury is displayed - regions with higher elevations are colored brown, yellow, and red. Lower elevations are colored blue and purple.
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NASA's Messenger spacecraft was the first dedicated to orbiting Mercury, the solar system's innermost planet. It studied Mercury from 2011 to 2015, when its mission ended.
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