SUNSET: 
Big and Bright, Jupiter Beckons in January
Jupiter's having a special moment! Don't miss the giant planet at its best when it reaches opposition this week.
New Nova in the "Teapot," Algol Blinks, and Uranus Occults a Star
A new nova for early risers plus three fun observing projects for the week ahead.
You're Invited to Jupiter's Big, Bright Opposition Bash
Don't let the cold keep you inside — Jupiter beckons with a brand new storm!
Jupiter’s Great Red Spot Shimmies to a Beat
Hubble observations reveal that the storm’s size and shape change in a cyclic pattern.
Jupiter Meets Uranus in Twilight; Supernova Erupts in Nearby Spiral Galaxy
Jupiter aligns with distant Uranus before it exits the evening sky as a bright supernova flares in the southern galaxy NGC 3621.
NASA's Juno Mission Makes Closest Flyby Past Io
Juno has revealed Jupiter's volcanic moon Io as never before.
Jupiter's Great Red Spot Just Keeps Getting Smaller
Jupiter's Great Red Spot may be reaching a milestone this year by shrinking to its smallest size in recorded observational history.
Striking New Views of Jupiter and Its Moon Io
The James Webb Space Telescope and Juno mission turned their eyes to Jupiter and its volcanic moon Io, revealing fine details.
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.
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.
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.
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.
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.
