Solar Orbiter has captured the clearest evidence yet that a solar flare grows through a cascading “magnetic avalanche.” Small ...

More than 100 million light-years away from Earth, a monstrous black hole turned ravenous this summer. It ended up gulping down a star. This feeding event was so intense that it lasted for at least ...

Scientists may have to rethink their playbook for studying gamma-ray bursts, the most powerful known cosmic explosions, after a blast detected in July set a new record by firing energetic jets for ...