Mercury, First Planet From the Sun: Latest Discoveries

Mercury is our solar system's smallest planet.
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October's Planets on Parade: How and When to See Them
Moon, Venus and Regulus, October 2015
October 5th, 2015
Here's a guide for October skywatchers: First catch Saturn, then Jupiter, Mars and Venus, and finally Mercury in the night sky as this month's planetary parade begins.
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Mercury's Speedy Spin Hints at Planet's Insides
mercury, spin, core
September 11th, 2015
Mercury is a faster spinner than thought, completing a spin on its axis roughly 9 seconds more quickly than scientists previously charted — and that data will help scientists understand more about the planet's molten core.
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How to See Venus, Saturn, Jupiter & Mercury in July's Night Sky
Saturn in July 2015
July 1st, 2015
July offers opportunities to see Venus, Saturn, Jupiter and Mercury overhead. Here's how, and when, to spot them.
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Right Place, Right Time: See Mercury in the Night Sky This Week
Mercury at Greatest Elongation East in September 2015
September 4th, 2015
Mercury is a very challenging planet to view, but this week, skywatchers have a good chance to see it, especially in the Southern Hemisphere.
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Spot Elusive Planet Mercury in the Predawn Sky This Week
See Mercury in Predawn Sky: Northern Hemisphere
June 23rd, 2015
Mercury is a difficult object to spot, because it's always clinging closely to the sun’s apron strings. So you might be excused for missing its brief appearance this week in the dawn skies.
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Now Is the Best Time to See Mercury in the Night Sky This Year
On the evening of Thursday, May 7, Mercury was at its farthest from the sun for 2015. The next week is the best time of the year to see Mercury from the Northern Hemisphere.
May 8th, 2015
Now is the best time to see the planet Mercury in the evening sky just after sunset. Here's how to see Mercury in the night sky. Mercury was at it's farthest from the sun for the year on Thursday (May 7).
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The Brightest Planets in September’s Night Sky: How to See Them (and When)
Venus, September 2015
September 1st, 2015
Eye-popping Venus, low-riding Mercury and stealthy Saturn will all make appearances among the bright objects in September's night sky, and this day-by-day description shows how to find them.
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Mercury Sole Survivor of Close Orbiting Planets Around the Sun
Kepler-444 System of Planets
June 12th, 2015
The area of our solar system where Mercury resides may once have held as many as four rocky planets. Violent collisions could have left it as the last survivor.
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