When Voyager 2 flew by Uranus and Neptune 40 years ago, astronomers were surprised that it detected no global dipole magnetic fields, like Earth's. The explanation: the ice giants are layered and ...
The outer planets generally have lots of little moons orbiting them. As a result, things can get a bit crowded. When moons orbit a planet in similar orbits, their gravitational tugs on each other can ...
New images from the space-based observatory offer a novel view of the planet in infrared. By Jonathan O’Callaghan No spacecraft has visited Neptune since 1989, when the NASA probe Voyager 2 flew past ...
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