Mercury, First Planet From the Sun: Latest Discoveries

Mercury is our solar system's smallest planet.
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Explosive Surprise: Huge Volcanoes Shook Mercury for Billions of Years
Terror Rupes on Mercury
April 16th, 2014
Explosive volcanic eruptions apparently shook and shaped Mercury's surface for billions of years, a new study finds, surprising scientists who had thought the phenomenon was impossible on the sun-scorched planet.
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Tiny Planet Mercury Is Shrinking Fast
MESSENGER Spacecraft Survey of Surface of Mercury
March 17th, 2014
New information from NASA's MESSENGER solves the contradiction between the evidence of shrinking on the planet's crust and the models for heat loss in its core.
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NASA Spacecraft Snaps More than 200,000 Photos of Mercury (Image)
MESSENGER Crater Hollows Mosaic
February 7th, 2014
A probe orbiting Mercury has beamed more than 200,000 images to ground controllers on Earth, and it's still going strong.
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Brightest Planets in April's Night Sky: See Mars, Jupiter and More
This NASA graphic shows the location of Mars in early April at 8 p.m. local time. Mars will reach opposition on April 8, 2014.
April 7th, 2014
Planets abound in the night sky this month, which affords good views of Venus, Jupiter and Neptune. And on Tuesday (April 8), Mars will make its closest approach to Earth in more than six years.
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Elusive Mercury Visible in March's Dawn Sky: How to See It
Mercury in March 2014 Sky Map
March 5th, 2014
Mercury, the elusive planet that orbits closest to the sun, makes an appearance this month in the dawn sky.
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Best Time to See Mercury in Night Sky Is Now
Mercury in Night Sky
January 29th, 2014
Stargazers have the best chance of the year to spot Mercury in the evening sky over the next week, but only if you know how to find the elusive planet.
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Counting Moon Craters: Amateurs, Scientists Do Equally Well
March 24th, 2014
Volunteers with no astronomy experience can pick out craters on the moon as accurately as a researcher with five to 50 years' experience, a new study reports. The finding could give a further boost to the use of citizen scientists in research projects.
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