It could be just the start of the jellyfish swarms as temperatures soar. The UK experienced the hottest day of the year on ...

And the scorching conditions could last throughout the month.

A possible new "jellyfish" galaxy discovered by the James Webb Space Telescope could deepen our understanding of galaxy ...

The problem with jellyfish is that their stinging cells can remain active even after the animal is dead. Fishermen complain ...

Those floating blobs may look harmless—but their stings can burn for hours. Here's what you can do to relieve the pain.

Ocean drifters once thought identical are actually several species. Genetics and ocean modeling uncover unexpected isolation.