A rare “ultra-hot Neptune” has revealed startling details, from near-2,000°C surface temperatures to unexpected reflective ...

The study also suggests a similar makeup for Neptune. In essence, then, the surface of both planets are 5,000 mile-deep oceans, though it is a little more complicated than that. The Oceans Of ...

Neptune and Uranus are gas giants that lack a solid surface. Their atmospheres are composed of hydrogen and helium, with trace amounts of methane. Scientists theorize that these planets experience ...