In November 2024, gravitational-wave detectors recorded the violent merger of two black holes billions ...

Gamma-ray bursts are the most violent explosions in the universe. In a fraction of a second, they can release more energy ...

Cutting-edge computer simulations combined with theoretical calculations are helping astronomers better understand the origin of some of the universe's most energetic and mysterious light shows -- ...

An international team from China and Italy has reported a possible cosmic encore to the landmark 2017 multi-messenger ...

Astronomers spend careers watching stars collapse and explode, but an eruption spotted in July pushed beyond anything seen before. The event, called GRB 250702B, released high-energy radiation for ...

Scientists from the RIKEN Cluster for Pioneering Research and collaborators have used simulations to show that the photons emitted by long gamma-ray bursts–one of the most energetic events to take ...

What is the nature of dark energy, a recently discovered dominant constituent of the universe today? Is expansion-accelerating dark energy an intrinsic property of space-time itself or rather a field ...

A peculiar cosmic explosion first detected by NASA’s Swift observatory on Christmas Day 2010 was caused either by a novel type of supernova located billions of light-years away or an unusual collision ...

For the first time, a binary black hole merger, observed in November 2024, has been linked with a short gamma-ray burst (GRB), a phenomenon that was previously thought impossible. This unprecedented ...

"The gamma-ray burst traveled through intergalactic space at the speed of light for eleven billion years, during which time the Sun and the planets were born." — Timothy Ferris, in the film version of ...