HINGHAM June 18, 2020 7:26 am Jellyfish Warning on Coastal Beaches Swimmers and beach-goers are being warned about lion’s mane jellyfish, the largest known variety, that have been spotted off the coast. US & World Videos 2:31 Fallen Billerica Police Sgt. Ian Taylor honored at vigil 2:39 MIT president calls for shutdown of student encampments 0:16 4 people seriously hurt after boat sinks off Cape Cod 2:35 Fallen Billerica police sergeant honored during vigil 2:09 President of MIT calls for shutting down pro-Palestinian encampments