SUNSET: 
The Beginning of the End for the Hyades Star Cluster
New measurements from the European Space Agency’s Gaia satellite show that the young stars of the Hyades cluster are beginning to drift apart.
Scientists Find Stellar Flare 10 Billion Times More Powerful Than Those on the Sun
Scientists have caught a powerful flare of submillimeter-wavelength radiation from a young star in the Orion Nebula.
New Astro Camera Spots Thousands of Celestial Flare-ups
A vision from 70 years ago, the Zwicky Transient Facility has produced a wave of discoveries — but it’s only a hint of what’s to come.
Celestial Event Dubbed "The Cow" Puzzles Astronomers
Astronomers can't agree on what kind of strange stellar death created a brilliant source dubbed "the Cow."
The Dragon in Orion's Nebula
NASA's planebound SOFIA observatory has captured a far-infrared view of the Orion Nebula that reveals the actions of the region's stars — and the striking illusion of a dragon at the nebula's core.
Glowing Serpent Found in the Sky
Astronomers have discovered a star generating a pinwheel of dust 8,000 lightyears away, which may shed some light on the last stages of massive star evolution.
Ducks in Disguise or How Stars Hide Their True Colors
Do star clusters form all at once or over several generations? A team of astronomers finds an answer among the spinning stars of an amateur favorite, the Wild Duck Cluster.
Puny Star Might Be Specimen from Early Universe
A low-mass sun with few elements heavier than helium provides hope that the Galaxy might contain survivors from the very first generation of stars.
Speeding White Dwarfs May Point to Past Explosions
A recent study has discovered three of the fastest stars — white dwarfs — known in the Milky Way. But these stars may be more than just speeders — they might also be evidence of how Type Ia supernovae occur.
Two Explosions with Similar Quirks
High-energy radiation released during the merger of two neutron stars last year has left astronomers puzzled. Could a burst of gamma rays from 2015 help us to piece together a coherent picture of both explosions?
A New Look at the Solar Corona
The hot, tenuous solar corona is visible during a total solar eclipse, and astronomers have long studied the structure and dynamics of the ghostly coronal streamers. Now, a special observing campaign has allowed us to see the corona in unprecedented detail.
Surprise Discovery of a 14-Year-Old Supernova
Much of today’s astronomy happens via methodical searches, but sometimes serendipitous discoveries still surprise us. Such is the case with the transient CGS2004A, a possible supernova recently detected in a galaxy nearly 50 million light-years away.
Seen at Last: A Superfast Jet Streams Away from Neutron-star Smashup
A new finding suggests that LIGO’s neutron-star merger was a typical gamma-ray burst after all.
What Makes Supernovae Superluminous?
A new technique gives astronomers a closer look at what makes some stellar carnage so incredibly luminous.
Typo Throws Off Timing for Expected Binary Star Merger
Revised data changed expectations for a star pair that was supposed to merge in 2022.
The Storm Begins: Canadian Telescope Spots Its First Radio Burst
The first "fast radio burst" detected by the Canadian CHIME radio telescope is a tantalizing hint of what’s to come.
Sibling Rivalry Caused Eta Carinae's Historic Explosion
Faint echoes of light illuminate what really happened during the Great Eruption of the super-star Eta Carinae.
Mind the Gap: Gaia Mission Reveals the Insides of Stars
Astronomers have discovered a hiccup in stellar luminosities that may point to a new understanding of stellar structure.
Wheel-spoke Magnetic Field in Supernova 1987A
Researchers have mapped the magnetic field in Supernova 1987A, shedding light on how stellar blasts act as particle accelerators.
Black Hole Destroys Star and Shoots Jet
Astronomers have watched the growth of a jet fueled by a shredded star.
