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What if there's a star inside a black hole?

There is a question that often comes up at every public talk I do, and I have never had a good answer to it—well, not an entirely confident one. What's inside a black hole? The textbook reply is a singularity. Cross the event ...

The telescope that points itself

I'll admit to using AI for things it was probably never designed for. When my van threw a fault I couldn't immediately figure out—one that seems notorious for trips back and forth to a repair shop—I ended up in a long (but ...

DESI releases biggest 2D map of the universe

Hold on to your telescopes: The DESI Legacy Imaging Surveys team has released the largest-ever 2D color map of the universe. The 5.6-trillion-pixel map contains nearly 4 billion celestial objects, primarily stars and galaxies. ...

Slow spin could explain why planets become hellish

Hundreds of Venus-like planets could soon help determine why some worlds become sweltering greenhouse hellscapes while others remain capable of supporting life. But before answering that question, scientists first need to ...

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Astronomy
JWST study suggests a handful of 'leaky' galaxies reionized the early universe
Astronomy
Spacecraft observations may conceal how particles really move through near-Earth space
Astronomy
Rare ultra-magnetic star may be key to solving 90-year old quantum cold case
Astronomy
Milky Way-like simulation reveals how central galactic structures grow together
Astronomy
Trillion-mile gas streamer may explain tilt of triple-star system's outer planet-forming ring
Astronomy
Two decades of blazar observations, and the mysteries keep piling up
Astronomy
NASA's Perseverance captures Phobos and Earth
Astronomy
Runaway supermassive black hole RBH-1 offers new way to reconstruct ancient merger
Astronomy
Astronomers catch 'Hatchling' quasar breaking out of its dusty cocoon
Astronomy
'Little red dots' may be pulsating monster stars that created early-universe black holes
Astronomy
Astronomers catch massive star's death from the first explosive moment
Astronomy
Diffuse inter-filament gas is likely a key fuel source for massive star formation
Astronomy
Mapping monsters: Data release unveils all-sky views of supermassive black holes
Astronomy
NASA's PUNCH sharpens solar storm forecasting in first test
Astronomy
Mapping the upper atmosphere with public Starlink satellite data
Astronomy
Simulations hint at a hidden population of companionless black holes
Astronomy
A 21-hour dip could help explain Tabby's star's decade-long dimming mystery
Astronomy
Rubin Observatory opens a deep window on a famous cosmic field
Astronomy
What happens to a moon when its planet is stolen?
Astronomy
Astrobiologist uses Apollo lunar samples as mirror onto early Earth

Other news

Bio & Medicine
Protein-like nanoparticles sort themselves inside growing crystals, enabling controlled release
Evolution
Nature's original bioplastic may have fed animals for hundreds of millions of years
Earth Sciences
Rapid warming may tip Atlantic circulation at 2°C, while slower warming may avert collapse
Biotechnology
Teaching AI the biology of antibodies speeds drug discovery
Condensed Matter
Uniaxial strain reveals new way to tune electron flow in altermagnet material
Space Exploration
Satellite constellations could create spiraling space debris
Environment
River shipping emits nearly one-quarter of global shipping CO₂, analysis finds
Polymers
Recyclable glue bonds underwater in seconds and holds for years
Superconductivity
Long-sought Zhang-Rice singlet visualized directly in cuprate superconductor
Earth Sciences
African grasslands expanded 5 million year earlier than previously thought, molecular fossils suggest
Ecology
Severe weather now a key predictor of where bird species occur in North America
Earth Sciences
Models of glacial collapse in Antarctica improve predictions of sea-level rise
Bio & Medicine
Drug-carrying nanoparticles shrink venous malformations by 70% in mice
Earth Sciences
Europe's worst medieval flood highlights risk of successive extreme events
Social Sciences
Unsupervised free time increases the likelihood that adolescents will engage in violent behavior, 21-country study finds
Space Exploration
Space travel doesn't affect the strength of heart muscle cells, study finds
Ecology
Fast-moving wildfires may prevent western forests from recovering
Nanophysics
Graphene nanowrinkles could reshape electricity in future ultrathin devices
Nanomaterials
Ultrafast flash Joule heating significantly reduces MXene manufacturing time
Biotechnology
Microbes turn CO₂ into protein and vitamin B9 at commercially viable prices