The 466-year-old remains of an adult and a juvenile cat are the oldest known in the modern-day United States, a new study finds.

Scientists have found evidence for a cosmic collision in the Perseus cluster, a group of thousands of galaxies not far from our own.

Using the James Webb Space Telescope, astronomers have peered into galaxies that existed at cosmic noon to hunt ravenously feeding black holes and bursts of starbirth.

Scientists in China have refuelled a thorium reactor on the fly for the first time. The breakthrough is paving the way for working reactors that are significantly safer than conventional alternatives.

Power blackouts that left millions of people across Spain and Portugal without electricity may have been caused by a bizarre atmospheric phenomenon, though the true cause is yet to be determined.