Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space ...

For the first time since the early 1700s, Saturn and Neptune are teamed up in fiery, trailblazing Aries. And that’s not all—both planets will spend the summer portion of their retrograde in Aries, ...

NASA’s New Horizons spacecraft has traversed the orbit of Neptune, it’s last major crossing en route to becoming the first probe to make a close encounter with distant Pluto on July 14, 2015.