The Bloop: An Underwater Noise Mystery

The Bloop: An Underwater Noise Mystery

The Bloop was an ultra-low-frequency underwater sound recorded by NOAA in 1997 and once thought to be a giant sea creature. By 2005 NOAA had matched its acoustic signature to a cryoseism, or icequake: a massive Antarctic iceberg cracking and calving into the sea. Published: June 5, 2026. Last reviewed: June 5, 2026. What the […]

Unexplained Sky Noises Heard Worldwide

Unexplained Sky Noises Heard Worldwide

By Dr. Felix Chen · Published May 7, 2026 · Updated May 13, 2026 Last reviewed: May 7, 2026. What the “Sky Sounds” Phenomenon Actually Is Between August 2011 and the spring of 2012, a string of YouTube videos showing low, groaning, trumpet-like noises overhead went viral, with clips uploaded from Kiev, Costa Rica, southern […]