SUNSET: 
Ultra-Energetic Electrons from Our Astronomical Backyard
Scientists have found the highest-energy cosmic-ray electrons yet, and their source might be surprisingly nearby.
New Views of Vega’s Dusty Disk
High-resolution images reveal the debris disk around Lyra’s brightest star to be exceedingly smooth. If any planets lurk therein, they must be small.
A Radio Burst from a Giant "Dead" Galaxy
Exotic magnetars make brief, powerful flashes of radio waves — but a new discovery suggests there may be more than one way to make a magnetar.
Astronomers Map a Dandelion Supernova
Astronomers have, for the first time, mapped the 3D filamentary structure of a famous dandelion-shaped supernova remnant.
Searching Five Million Stars for Disks, Debris, and Dyson Spheres
Stars with more infrared emission than expected might host planet-forming disks, rubble from planetary collisions, or maybe even signs of technologically advanced civilizations.
Webb Telescope Images Planet-Shaping Winds Around Young Stars
Astronomers have obtained the first sharp images of winds blowing from gaseous disks around young stars, paving the way for improved models of planet formation.
Does Betelgeuse Have a Companion Star?
New analysis of Betelgeuse's brightness variations and other data points to a small, close companion for this giant star.
Astronomers Watch a Giant Star Blow Bubbles
Astronomers can see hot gas boiling on the surface of the giant star R Doradus, 180 light-years away.
See the Surface of Polaris, the North Star
New data from an array of telescopes has enabled astronomers to visualize the surface of the North Star, Polaris.
Status Report: Gravitational Waves
Astronomers at the International Astronomical Union report that we have now detected more than 200 gravitational-wave events, most the merger of two black holes.
Neutron Stars Might Be Squishy Inside
New data on the brightest pulsar observed with a telescope on the International Space Station suggests neutron star interiors are "squishy."
Astronomers Find 21 “Dark” Neutron Stars Orbiting Sun-like Stars
New analysis has revealed 21 Sun-like stars in mutual orbit around dark objects of neutron star–like masses — rare systems that have escaped destruction by supernova.
Webb Telescope Reveals Parallel Jets from Baby Stars
A new image taken by the James Webb Space Telescope reveals a stunning alignment among the infant stars in the Serpens Nebula.
Three Neutron Stars Reveal Inside Secrets
Astronomers surveyed dozens of neutron stars, homing in on three that challenge most ideas about what these exotic objects are made of.
Dwarf Star Caught Speeding; Could Escape the Galaxy
Citizen scientists discovered a star speeding through the Milky Way. Now, astronomers are trying to track down its origins.
Euclid’s Revolutionary New Images
The Euclid mission has released five new panoramas of celestial objects that are stunning in both their breadth and depth.
Cosmic "Hand" Reaches for the Stars
This oddly shaped cloud of dusty gas is shaped by the winds and radiation from nearby stars.
Is This Gamma-Ray Burst a Shredded Star in Disguise?
Is GRB 191019A a typical burst of gamma rays from a dying star, an anomalously long burst from colliding objects, or something else entirely?
What Happens After a Supernova Blows? Watch and Find Out
New time-lapse videos from the Chandra X-ray Observatory show the Crab Nebula and the Cassiopeia A supernova remnant over more than 20 years.
See What Happens When Stars Collide
A star in the constellation Norma appears to have been created when two stars merged.
