Mohammed Anas on Instagram: "This is A-23A — one of the biggest icebergs on Earth. In 1986, a massive 9,000 km² block of ice broke away from the Filchner Ice Shelf in Antarctica, creating this frozen giant that was larger than some countries. Nearly 400 meters thick, it remained stuck to the seafloor for more than 30 years before finally drifting back into the open ocean. Today it still carries enough ancient ice to supply the entire planet with water for a year. A drifting mountain of ice, olde