Astronomers may have seen a space event that has never been clearly confirmed before. It is called a superkilonova, and it may have been detected in August 2025. The event happened very far from Earth ...

When the most massive stars reach the ends of their lives, they blow up in spectacular supernova explosions, which seed the universe with heavy elements such as carbon and iron. Another type of ...

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 ...

NRAO News reports on a new study in which astronomers have detected radio signals from a rare type of stellar explosion for the first time. The discovery was made using the U.S. National Science ...

Earth may owe some of its properties to a nearby star that blew up just as the solar system was forming. This pattern, which saw a supernova bubble envelop the sun and shower it with cosmic rays, may ...

The James Webb Space Telescope and other international observatories have spotted a 13-billion-year-old supernova. On Tuesday, the European Space Agency (ESA) announced the sighting of a gamma-ray ...

What can imaging supernovae (plural for supernova) explosions teach astronomers about their behavior and physical characteristics? This is what a recent study published in Nature Astronomy hopes to ...

The James Webb Space Telescope has observed the oldest known supernova—the explosive death of a star that lived when the universe was only 730 million years old. The ancient blast occurred when the ...

Hidden within Cassiopeia A, the youngest known exploded star in our galaxy, astronomers have found surprisingly high levels of chlorine and potassium. These elements carry an odd number of protons in ...

A New Jersey-bound airplane that suddenly plunged thousands of feet in the air — sending 15 people to the hospital in October — was likely struck by cosmic rays from a star that exploded in another ...