Uranus and Neptune remain two of the most mysterious objects in the solar system, primarily because they’ve only been visited by NASA’s Voyager 2 spacecraft in 1986 and 1989, respectively. Their “ice giant” moniker comes from longstanding hypotheses that their interiors are comprised of an icy mantl...
Uranus, Neptune May Be Magma Worlds, Not Ice Giants
By system
June 26, 2026 •
50 views
Original source:
Universe Today
