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Rings of Neptune. Voyager 2 imaged Neptune's dark, faint rings in 1989. Before that, earthbound scientists had only been able to find evidence of parts of rings. [Image credit: NASA] Mona Evans, "Neptune Facts for Kids"

Olympus Mons on Mars is the biggest volcano in the Solar System. It's nearly three times the height of Mount Everest at nearly 22 km (14 miles) and as big as Arizona. (Photo: JPL NASA) ©Mona Evans, "10 Amazing Facts about the Solar System" http://www.bellaonline.com/articles/art33026.asp

Neptune's first birthday since its discovery was on July 12, 2011. Johann Galle found Neptune on September 24, 1846, but a Neptunian year is quite long! ©Mona Evans, "10 Amazing Facts about the Solar System" http://www.bellaonline.com/articles/art33026.asp

~~Supernova remnant G266.2-1.2 (NASA, Chandra, 10/28/13) | NASA's Marshall Space Flight Center~~

Rheasilvia Crater on Vesta. You might have trouble picking out the crater in the picture. It's 505 km (314 miles) across and covers most of the southern hemisphere, so the picture is almost all crater. (Photo: NASA's Dawn spacecraft) ©Mona Evans, "10 Amazing Facts about the Solar System" http://www.bellaonline.com/articles/art33026.asp

This color photo of Neptune's largest moon Triton was obtained by NASA's Voyager 2 probe on Aug. 24, 1989, from 330,000 miles away. The resolution is about 6.2 miles, sufficient to begin to show topographic detail. Credit: NASA/JPL

Saturn on June 13, 2012. A beautiful, dramatic image – unprocessed – from the Cassini probe 1.6 million miles from the planet. Wow! Even at that distance the rings don't completely fit into the picture. (Image credit: NASA/JPL/Space Science Institute) ©Mona Evans, "10 Amazing Facts about the Solar System" http://www.bellaonline.com/articles/art33026.asp

The Solar System series- Neptune infographics! #telescopeplanet #astronomy