SUNSET: 
Fast Radio Burst Roundup
They’re powerful, they’re fast, and we aren’t sure about what causes them, but astronomers are closer than ever to understanding the source of mysterious fast radio bursts.
Comet 46P/Wirtanen: All Dust, No Ice
Where is all of the water around hyperactive comets coming from? A recent article asked if it could be “Ice, Ice, Maybe?” and concluded that it likely isn’t.
Could Axions Help Fast Radio Bursts Escape a Magnetar’s Grasp?
New research proposes a way for fast radio bursts to escape the confines of a magnetized star and jet out into space — by getting help from theoretical particles called axions.
Could Supermassive Stars Explain How This Galaxy Got Its Nitrogen?
Supermassive stars might explain the unusual amounts of nitrogen in one of the most distant known galaxies, GN-z11.
Red Galaxies at Night, Astronomers' Delight: A Look at the “Hubble-Dark” Universe
JWST images of early galaxies have turned up a population of flat, red disks that may have been entirely missed by previous surveys.
Focusing on the Brightest Gamma-ray Burst of All Time
Gamma-ray bursts are the most luminous explosions in the universe, and we’ve learned much about these superlative outbursts since their discovery in 1967.
A Fresh Look at Kepler-444’s Ancient Planetary System
Astronomers have taken a closer look at a system containing three stars and five planets and may have solved a mystery around its formation.
Searching for the Seeds of Supermassive Black Holes
The seeds of supermassive black holes could show up in an upcoming sky survey with JWST.
JWST Investigates an Exoplanet "Corgi"
The James Webb Space Telescope has found the tiny tail of a close-in exoplanet that's losing its atmosphere.
Four Stars, Many Eclipses
Stars are most often born as multiples. Now, the TESS telescope has caught one of these multiple systems in a unique setup.
A Supernova Hits a Cosmic Speed Bump
Why did a supernova abruptly change color? A recent study suggests a change in ejecta velocity — a cosmic speed bump — might be the culprit.
New Life for Lunar Seismic Data
A team of planetary scientists has reprocessed Apollo-era seismic data to meet modern forms, ensuring that these precious measurements remain usable for the next generation.
Caught in a Solar Storm on the Way to Mars
A chance alignment between Earth and a Mars-bound spacecraft has given us a rare glimpse at the motions of high-energy particles from the Sun.
When Planets Collect Comets
What kind of planets are likely to ensnare comets coming in from the icy outer reaches of a planetary system?
The Life and Times of Immortal Stars
Under the right conditions, stars could become immortal. How is this possible, and what does it mean for these stars’ surroundings?
Spotting Dots on the Sun
You’ve heard of sunspots, but how about Sun dots? A recent solar mission has snapped photos of tiny, bright dots on the Sun, and astronomers are contemplating their cause.
A Possible Optical Counterpart to a Fast Radio Burst?
What’s the mechanism behind millisecond-duration bursts of radio energy coming from outer space? A team searched for visible-light counterparts to constrain the origin of fast radio bursts — and found one.
First Look at an Unusual Exoplanet’s Atmosphere
AAS Nova reports on a "super-puff" exoplanet that's nearly 15 times less dense than Jupiter.
Protostar Companions in Orion
How are stars born? One of the best places to test ideas about stellar birth is in Orion.
Exploring a Magnetospheric Origin for Fast Radio Bursts
Astronomers are starting to close in on the origins of fast radio bursts — powerful, fleeting flashes of radio waves seen at extragalactic distances.
