Neptune is the keeper of the deep: The last known major planet from the Sun, the god of the boundless sea beyond the inner solar system that marks the shore of the black depths of interstellar space. Despite being four times the diameter of Earth , its distance of a soul-chilling 4.5 billion kilometers from us makes Neptune tiny and faint even through large telescopes — which is why it wasn’t discovered until 1846.  Our only close-up view was sent back to us from Voyager 2 in 1989… but JWST just set its sight on the distant world , sending back some of the best views of its moons and rings we’ve had in three decades. Whoa. There is a lot going on with this far-off planet. A reminder that this shot is a combination of images taken in the near-infrared, wavelengths of light longer than the human eye can see. The physics of what we see is a little different than from visible-light images, which naturally makes this a lot more fun to investigate.…