In 1997, ocean researchers listening for the sound of underwater volcanoes accidentally recorded something they had never heard before. The noise, which they dubbed the “bloop,” was the loudest sound ever recorded under the sea, and it was an unexplained mystery for nearly 20 years.<br /><hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>

2 - Don’t Be Alarmed, But the Rocks Are Crawling

A deep dive into the world's greatest mysteries that were solved by science. Brought to you by Motherboard and staff writer Kaleigh Rogers. Hosted on Acast. See acast.com/privacy for more information.