SUNSET: 
Rare Interstellar Comet Buzzes Solar System
A newfound comet from a remote star system may become bright enough to see in amateur telescopes this November.
Never-Before-Seen Views of the Sun
New observatories in space and on the ground are providing us with our best views yet of the Sun — providing insight into puzzles that have remained unsolved for decades.
Newborn Jupiter Was Twice as Big As It Is Today
A new study of the motion of Jupiter’s moons has revealed that the king of planets, when it was young, was at least twice as large as it is today.
Major Flare Could Spark Severe Geomagnetic Storm Sunday Night, June 1st
Tips for viewing tonight's hoped-for aurora whether your skies are clear or smoky.
Sharpest Images Yet of the Sun's Corona [VIDEOS]
New adaptive optics technology has resulted in the sharpest views yet of the solar corona.
Another Dwarf Planet in Our Solar System?
A newly discovered object in the outer solar system, 2017 OF201, is the largest found in more than a decade.
Methane Clouds in Motion on Saturn's Moon Titan
Astronomers have watched clouds move in Titan's atmosphere and even observed the chemistry of Saturn's moon in action.
"Cassini's Bright Spot" Beams at Full Moon
Rayed craters pepper the Moon especially around full. Cassini's Bright Spot is one of the most striking.
Metal Shards Shed Light on the Origin of Asteroid Kalliope
Small relatives of the much-larger Kalliope, a metallic main-belt asteroid shed light on their mutual origin early in solar system history.
Asteroid Vesta Now an Easy Catch in Binoculars
Vesta, both protoplanet and asteroid, reaches opposition on May 2nd. From a dark sky it's even visible with the naked eye.
Meet Asteroid Donaldjohanson: Long and Lumpy
During a close flyby on April 20th, NASA’s Lucy spacecraft surprised its science team by revealing an asteroid that was once two smaller pieces that have been conjoined into a larger whole.
Plumes from Saturn's Moon Enceladus Might Come Straight from Its Hidden Ocean
Researchers reanalyzing Cassini data think the plumes from Enceladus might provide direct access to the Saturnian moon's underground ocean.
New Comet SWAN Now Visible in Small Scopes
A new comet discovered in spacecraft images is bright enough to make you get out of bed before dawn.
Near-Earth Asteroid 2024 YR4 Might Aim for the Moon
The asteroid that will now definitely not hit Earth has the highest odds ever for a predicted lunar impact — but a miss is still more likely.
Webb Telescope Has Weighed in on Impact Odds for Asteroid 2024 YR4 (Updated)
So far, searches for archival images that could confirm or rule out the asteroid's impact have come up dry, but Webb observations in May could help pin down the orbit.
Sunrise Solar Eclipse on March 29th for Eastern North America
The March 29th partial solar eclipse offers unique opportunities for photography and viewing alike.
EZIE Mission Launches to Study the Aurora
EZIE has launched successfully, poised to probe a poorly understood aspect linking space weather to dazzling aurora.
It’s Official: Saturn Has 128 New Moons
With a total now of 274 known moons, Saturn leads all of the planets by far.
Europe's Hera Mission Swings Past Mars, Sees Deimos
The Hera mission sent back unprecedented views of the Martian moon Deimos as a prelude to the mission's final destination: the asteroid Didymos.
First Thermal Images of Mercury from BepiColombo
The European BepiColombo mission made a detailed heat map of a large swath of Mercury's surface during its most recent flyby.
