Astronomy For Youngsters: The Planet Uranus
A gravity-help is needed from Jupiter to get to the ice giants in a semi-affordable time-frame—and Jupiter is going to be badly placed for a slingshot to Neptune after 2030. That’s official website also soon—and a mission to Neptune would cost at least another $300 million. Uranus is created of a hydrogen and helium upper layer, an icy mantle which surrounds its rock and iron core. As opposed to practically…Read More