Dec. 9, 2024 — A NASA Hubble Space Telescope observation program called OPAL (Outer Planet Atmospheres Legacy) obtains long-term baseline observations of Jupiter, Saturn, Uranus, and Neptune in ...
This is where multiple planets line up next to each other. On January 21, six planets—Venus, Mars, Jupiter, Saturn, Uranus, and Neptune—will be visible simultaneously in the sky, and their ...