Not your typical ice cube. 🧊 Although it is not uncommon to see icebergs with relatively straight edges, icebergs with two straight edges that converge into a right angle are less common. This rectangular iceberg was pictured in 2018 as part of Operation IceBridge, our longest-running aerial survey of polar ice. From 2009 to 2019, IceBridge flew planes loaded with special equipment over Earth’s polar regions to study sea ice, ice sheets, and glaciers to understand how Earth’s ice is changing. The rectangular iceberg appeared to be freshly calved from Larsen C, a large ice shelf extending from the Antarctic Peninsula. In July 2017, Larsen C also released the massive A68 iceberg, a chunk of ice about the size of the state of Delaware. IceBridge data like this help NASAEarth scientists better understand the effects of climate change on Earth’s polar regions. Image description: A picture of sea ice extending to the horizon, taken from a low-flying aircraft. Where the ocean peeks throu...