SUNSET: 
Do Diamonds Rain on the Ice Giants?
New research shows diamonds might condense out of Neptune's mantle, but not Uranus', explaining a decades-old discrepancy.
Amateur Finds New Images of Uranus’ Rings in 35-Year-Old Data
What else is hidden in archival data?
Where Did the Ice Giants Form?
Conventional planet formation scenarios have Neptune and Uranus forming closer to the Sun. But a new study shows that the ice giant planets could have formed right where they are now.
Explore the Night with Bob King
Uranus Queues Up for Opposition
Journey to a remote planet then double back to check in on the latest stirrings of Comet 29P/Schwassmann-Wachmann before touching the finger of dawn.
Hail-like “Mushballs” May Fall on All Our Giant Planets
"Mushballs," first inferred to exist on Jupiter, may fall within the atmospheres of all the solar system's giant planets.
Tiny Asteroid Flora and Mighty Uranus Team Up
Both Uranus and the asteroid 8 Flora came to opposition on Halloween. Catch them both in the same corner of the sky the next clear night.
Ice Giants: Neptune and Uranus
Spot Uranus and Neptune, and relive the original discoveries.
Uranian Moons Are Like Dwarf Planets
The moons of Uranus exhibit heat signatures similar to dwarf planets in the Kuiper Belt — where the moons were likely born.
Hubble Sets Its Sights on the Ice Giants
New Hubble Space Telescope images reveal an expanded polar cap on Uranus and another mysterious dark vortex on Neptune.
Explore the Night with Bob King
The Outer Planets Move In, plus an "Old Moon" Observing Challenge
As the bright planets march westward, Uranus and Neptune become the fresh new faces of fall. And if you've never seen an ultra-thin lunar crescent, here's your chance.
Explore the Night with Bob King
Watch Venus and Uranus Double Up Beneath a Comet
Following an occultation of Rho Leonis by the Moon, watch Venus and Uranus pair up in a weekend conjunction just 10° from Comet ER61 PanSTARRS.
Explore the Night with Bob King
Uranus: In Seventh Heaven with Planet Seven
With our eyes often glued to the bright classical planets, Uranus is easy to overlook. Now well-placed for viewing at a convenient hour, why not pay this pale blue dot a visit the next clear night?