SUNSET: 
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.
Partially Shredded Star Returns for a Second Go-round with Black Hole
A supermassive black hole has twice now grabbed gas from a passing star — and astronomers predict a third chance will come in early 2025.
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.
Trio of Early Galaxies Test Our Ideas of Cosmic Evolution
Some galaxies hailing from the infant universe may already hold vast populations of old stars.
Astronomers Trace the Family Tree of Stars Clustered in the Solar Neighborhood
Astronomers have pressed rewind on a cosmic video of the solar neighborhood, tracing the origins of young star clusters within 3,000 light-years of the Sun.
Webb Telescope Sees Evidence of Asteroid Collision Around Nearby Star
New data suggest the star Beta Pictoris has cleared away the remains of an asteroid pulverized as recently as two decades ago.
"Death Star" Black Holes Can Swivel Their Million Light-Year Long Plasma Beams
Heavyweight black holes sometimes topple over on their sides, according to X-ray and radio observations of the jets these black holes power.
Cosmic "Hand" Reaches for the Stars
This oddly shaped cloud of dusty gas is shaped by the winds and radiation from nearby stars.
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.
Watch a Hotspot Orbit Our Galaxy's Black Hole
Astronomers have reconstructed a 3D video of hot gas orbiting a stone’s throw away from our galaxy’s central black hole.
NASA Struggles to Find Way Forward for Mars Sample Return
NASA's Perseverance mission has been collecting samples for later retrieval and return to Earth. Now, it's unclear how we'll get those samples home.
Where to Watch the Total Solar Eclipse Online
Watch the total solar eclipse — alongside interviews with scientists and astronauts — with these livestreams.
What Will the Sun's Corona Look Like During Totality?
The eclipse is coming up, and already scientists have predicted the appearance of the solar corona on the big day.
Could We See the Sun Erupt on Eclipse Day?
Ejections of solar material are increasingly commonplace as the Sun’s activity ramps up. Here’s what to expect if an eruption occurs on eclipse day.
Neutron Star "Glitches" Are Clue to Mysterious Radio Bursts
New observations of a neutron star in the Milky Way's center shed light on what makes mysterious fast radio bursts.
Webb Telescope Unveils 19 Galaxies in a New Light
A James Webb Space Telescope survey known as PHANGS has revealed exquisite, just-published details in 19 nearby galaxies.
Does Saturn's "Death Star" Moon Harbor an Ocean?
New evidence, based off of NASA's Cassini measurements of Mimas's orbit, suggests the icy "Death Star" moon might have a subsurface ocean.
Hubble Reveals Possible Water-Vapor World
New Hubble Space Telescope observations reveal the warm sub-Neptune GJ 9827d might have a steamy atmosphere.
The Milky Way Might Have Started Out Shaped Like a Pickle
Faraway dwarf galaxies in the universe's distant past — which will become modern Milky Ways — have an unexpectedly stretched-out appearance.
