The blast may have been a kilonova — a type of neutron star merger — in the wake of a more traditional supernova.

Kepler's supernova remnant is extremely exciting for astronomers – a rare example of a supernova for which we have a clear ...

The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about ...

Last year delivered doses of drama and excitement in the space business, with a record number of launches, breathtaking ...

A mysterious cosmic blast 1.3 billion light-years away has left scientists stunned. What began as a familiar stellar event ...

Astronomers have spotted AT2025ulz, a rare dual explosion — a supernova and a kilonova — that may be the first-ever observed ...

A superkilonova candidate event, named AT2025ulz, was observed in 2025; LIGO and Virgo first spotted gravitational waves, ...

Scientists have detected the most distant supernova ever seen, exploding when the universe was less than a billion years old.

A massive star may have burst, leaving behind two dense, dead cores, which then collided and caused another explosion ...

Astronomers using the James Webb Space Telescope report that a powerful gamma-ray burst detected in March may have been produced by the explosion of a massive star just 730 million years after the Big ...

Here’s what you’ll learn when you read this story: A new paper adjusts an equation that defines our universe in response to recent new data. The cosmological constant, which describes how our universe ...

It's a plot device beloved by science fiction: our entire universe might be a simulation running on some advanced civilization's supercomputer. But new research from UBC Okanagan has mathematically ...