Voyager 2’s flyby of Uranus in 1986 recorded radiation levels so extreme they baffled scientists for nearly 40 years. New research suggests the spacecraft caught Uranus during a rare solar wind event ...

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 ...

On March 13, 1781, Sir William Herschel discovered Uranus, the seventh planet from the sun. [‘On This Day in Space’ Video Series on Space.com] Before Herschel discovered Uranus, other astronomers had ...