A pale blue-green enigma, the planet Uranus has long fascinated astronomers precisely because of its extreme distance, some 1.6 billion miles (2.6 billion km) from Earth. While it is comparatively ...
New observations by the James Webb Space Telescope suggest that an icy moon around Uranus may have an underground liquid ocean. Ariel is one of 27 moons around Uranus, the seventh planet from the ...