SUNSET: 
How to Measure Jupiter's Deflection of Starlight
Get involved in an extraordinary experiment to test Einstein's theory of General Relativity — and you can do it from your backyard.
Astronomers Find a Dozen More Moons for Jupiter
The discovery of a dozen new moons for Jupiter makes the king of planets the king of moons, too — at least for now.
The Light Show of Jupiter’s Dark Side
The unique vantage point of NASA's Juno spacecraft has revealed a new side to Jupiter's auroras.
Explore the Night with Bob King
Jupiter's Exceptionally Close Opposition
A sentinel in the autumnal sky, Jupiter marks its closest opposition since 1963.
Webb Reveals Jupiter, Puffy Planet, and Galactic Maelstroms in a New Light
Round out your week with these stunning views of the universe from the James Webb Space telescope.
Why Are Jupiter's Rings So Thin?
Why does the biggest planet in the solar system have such flimsy rings? New research shows Jupiter's moons may be to blame.
Explore the Night with Bob King
Amateurs Spot New Impact Flash at Jupiter
An amateur astronomer has discovered a possible new impact flash in Jupiter's equatorial region. Observers may yet see the dark impact scar.
The 12-Year Cycle of Jupiter Oppositions
Jupiter is at opposition on August 19th. If we take the long view — 12 years long — we can watch Jupiter's oppositions as it passes through the zodiac constellations.
Explore the Night with Bob King
Jupiter Dazzles at Its Brightest and Closest This Year
Jupiter comes to opposition on August 20th, when it will shine brighter and closer than at any other time this year. With nights starting earlier and cooler temperatures arriving, there's no better time to make the most of the planet.
Sights and Sounds of the Solar System
Spacecraft are returning sights and sounds from Venus, Jupiter, and beyond — here's a sampling.
Explore the Night with Bob King
Mutual Event Season Heats Up at Jupiter
Jupiter is usually the one occulting and eclipsing the Galilean moons, but this observing season the moons also eclipse and occult one another.
Jupiter's Great Red Spot Gets Smaller — But Stronger
"Flakes" coming off the Great Red Spot have had some wondering if this epic storm is coming to an end. But observations and computer modeling show it's only getting stronger.
Amateur Astronomer Finds “Lost” Moons of Jupiter
An amateur astronomer has recovered four of five "lost" Jovian moons.
Jupiter and Saturn Embrace in Solstice Conjunction
Jupiter and Saturn fashion the Great Conjunction of 2020 when they pair up on December 21st, the winter solstice. That evening they'll be closest in nearly 400 years.
Jupiter and Saturn Have Historic Dusk Encounter
Don't miss the upcoming close conjunction of Jupiter and Saturn on December 21st!
Juno Discovers Sprites and Elves on Jupiter
NASA's Juno spacecraft has captured ultraviolet images of a rare atmospheric phenomenon in Jupiter's atmosphere.
Stormy Times on Jupiter, Comet Howell Steps Up, and More
Colder weather might be coming, but don't pack away that telescope! You'll miss a powerful storm that's remaking Jupiter's North Temperate Belt, a returning comet, Mira on the rise, and a bright supernova in the Great Bear.
Study Suggests Jupiter Could Have 600 Moons
New detections of candidate moons suggest that the king of planets could have hundreds of smaller satellites.
How Bright Are the Planets?
What do Venus and Jupiter have in common? Revisions to planets' magnitudes in this year's Astronomical Almanac have revealed some surprises.
Explore the Night with Bob King
Texas Amateur Detects Possible Impact on Jupiter
It looks like Jupiter got slammed again! A bright flash from a possible impact lit up the planet's South Equatorial Belt Tuesday night.
