Scientists have discovered two new rings around Uranus, including one composed of water ice, adding to our understanding of ...

Throughout most of recorded history, humankind had known only six planets, five in the sky — Mercury, Venus, Mars, Jupiter and Saturn — plus Earth once it became generally accepted in the 17th century ...

Among the solar system’s planets, Uranus is criminally overlooked. Much like its outer solar system neighbor, Neptune, this “ice giant” world is so far from the sun (and so visually bland) that we ...