One of the oldest icebergs that has ever been tracked is feeling the blues. The megaberg A23a is most likely on its last legs, and has been captured turning blue because of meltwater. The iceberg was ...

Antarctica’s biggest and oldest free‑floating iceberg is undergoing a startling transformation, with its once white surface now streaked by vivid pools of blue. The color shift is more than a visual ...

An astronaut aboard the International Space Station captured a photograph showing a closer view (below) of the iceberg on December 27, 2025, with an even more extensive melt than the day before.

An iceberg, until recently the world's largest, has turned blue as it nears complete disintegration. Get any of our free email newsletters — news headlines, sports, arts & entertainment, state ...