SUNSET: 
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.
Thin Red Lines: Webb Space Telescope Captures Star Creation on Grand Scale
New imagery from the James Webb Space Telescope shows a nearby galaxy in a whole new light.
This Week's Sky at a Glance, July 29 – August 6
As the Big Dipper dips and the Guardians of the Pole align one over the other, Saturn looms low in the southeast and the False Comet teases at its highest.
Black Widow Pulsar Sets Mass Record
A pulsar has devoured enough of its stellar companion to grab the title for most massive known neutron star.
Explore the Night with Bob King
Solving an Earthshine Mystery
Something we take for granted about the crescent Moon's appearance may be nothing more than an optical illusion.
When Planets Collect Comets
What kind of planets are likely to ensnare comets coming in from the icy outer reaches of a planetary system?
This Week's Sky at a Glance, July 22 – 30
Bright Arcturus is still pretty high after dark, but as summer progresses, it moves down the western side of the evening sky. Its pale ginger-ale tint always helps identify it.
Giant Black Holes Make Tiny, Ghost-like Particles
Blazars, the gas-guzzling black holes at the center of galaxies, could make most of the tiny particles known as neutrinos we catch on Earth.
Radio “Heartbeat” Teases Fast Radio Burst Origins
Scientists have observed pulses from a fast radio burst, suggesting the flash might have come from a neutron star.
A Black Hole Lurks in a Galaxy Near Our Own
Astronomers have found a dormant black hole orbiting a massive blue star in the Large Magellanic Cloud, a satellite galaxy of the Milky Way.
This Week's Sky at a Glance, July 15 – 23
The waning Moon says hi to late-night Saturn, the Teapot starts tilting, the Great Square thrusts up, and the Milky Way arches high.
See a Rare Transit of Iapetus on July 17–18
It's tiny. It's challenging. But you won't get the chance to see Iapetus transit the globe of Saturn again until 2037!
Asteroid Bennu Almost Swallowed Spacecraft Whole
Scientists knew the asteroid Bennu was likely a rubble pile rather than solid rock, but OSIRIS-REX's recent visit surprised them in showing just how loosely the asteroid really is.
Astronomy in Space with David Dickinson
What We See in the First Science Images from the James Webb Space Telescope
The James Webb Space Telescope released its first science images today. Here's what these images show us.
What the James Webb Space Telescope's First Year Will Reveal
The James Webb Space Telescope's first year of observations promises to reveal exoplanet atmospheres and surfaces, infant galaxies, and maybe even the first black holes.
Dark Matter Remains Elusive – For Now
The first run of a new dark matter experiment turns up nothing — but that still tells us something.
This Week's Sky at a Glance, July 8 – 16
July is Scorpius season. Maybe you know of the Cat's Eyes in the Scorpion's tail, but how about the Little Cat's Eyes in the Scorpion's body? The Sagittarius Teapot follows not far behind.
Where Did the First Quasars Come From?
New research shows how black holes with tens of thousands of Suns' worth of mass can form in the universe's early years.
Explore the Night with Bob King
Titan Occults a Bright Star, Mira Awakens, and Comet PanSTARRS Shines
Pick one or see them all. July offers a potpourri of celestial events for both naked-eye observers and telescope users that include a rare occultation by Saturn's moon Titan, a bright comet, and Mira at maximum.
The Black Hole Files with Camille Carlisle
Monstrous Black Holes Spin More Slowly — But Why?
X-ray observations add to growing evidence that the most massive black holes have a different past than their lightweight peers.
