SUNSET: 
Hubble Investigates Dwarf Galaxies Aligned Around the Andromeda Galaxy
A new Hubble Space Telescope survey shows intriguing patterns of star formation in dwarf galaxies aligned in a plane around the Andromeda Galaxy.
Record-breaking Ghost-like Particle Found in the Mediterranean Sea
A detector deep under the Mediterranean Sea has found the most energetic neutrino ever observed, igniting questions about the particle's origin.
The Ring Nebula Is a Barrel, Not a Ring, 3D Data Show
New data has allowed a team of researchers to reconstruct a detailed view of a famous circle in the constellation Lyra.
Ancient Venus Didn’t Have Oceans After All
Astronomers have poured cold water on the idea that Venus once hosted oceans on its surface, suggesting instead that the planet's interior has been dry for most of its history.
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.
Astronomers Map a Dandelion Supernova
Astronomers have, for the first time, mapped the 3D filamentary structure of a famous dandelion-shaped supernova remnant.
The Sun's Activity Is Reaching a Fever Pitch
The Sun is approaching the peak of this solar cycle, which means a higher chance of sunspots, flares, and aurora.
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.
Solved: The Case of the Universe’s “Extra” Light
Astronomers may have finally solved the mystery of how dark space really is.
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.
Webb Telescope Sees Morning and Evening on a Hot Saturn
The James Webb Space Telescope has for the first time detected the difference between the morning and evening of a tidally locked gas giant planet.
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.
Did This Black Hole Form Without a Supernova?
Some massive stars may collapse completely into black holes — without the fanfare of a supernova.
Planet Candidate Could Be Incandescent with Lava Flows
A new planet candidate discovered in data from NASA's TESS mission could be an extreme lavaworld, pushed and pulled by the gravity of its own star and two other close-in planets.
Webb Telescope Finds Dwarf Galaxies Lit Up the Early Universe
Faint, small galaxies ionized the opaque fog that obscured the early universe.
Six Sub-Neptunes Discovered 100 Light-Years Away
Astronomers have uncovered six sub-Neptune exoplanets dancing in lock-step around the same distant star, shedding light on their formation.
Webb Shows Planets Really Do Start with Pebbles
New observations have turned up evidence that icy pebbles deliver the water to inner regions of planet-forming disks.
New Forecast Resets Solar Cycle Expectations
A new forecast suggests that sunspot numbers, aurorae, and other solar activity will peak sooner and at a higher level than expected.
Radio Burst Breaks Distance Record, Challenges Theories
A highly energetic fast radio burst, which broke the distance record, provides a crucial test for theories of these events' origins.
