NASA astronaut captures stunning near-infrared image of Ganges River delta from space

Shared on social media on August 8, the image offers a rare, almost otherworldly view of the world’s largest river delta, where the Ganges and Brahmaputra rivers fan out across eastern India and Bangladesh before meeting the Bay of Bengal.

NASA astronaut Don Pettit has captured a stunning new perspective of the Ganges River delta, using near-infrared photography from aboard the International Space Station during Expedition 73.

Shared on social media on August 8, the image offers a rare, almost otherworldly view of the world’s largest river delta, where the Ganges and Brahmaputra rivers fan out across eastern India and Bangladesh before meeting the Bay of Bengal.

Accompanying the image, Pettit described the region as “the largest river delta on Earth,” underscoring both its geographical significance and natural splendour. The photograph quickly drew admiration from scientists, nature lovers, and photography enthusiasts alike, praised for blending technical precision with artistic expression.

Ganges river delta, over India and Bangladesh, photographed in near-infrared from the ISS. It is the largest river delta on Earth. pic.twitter.com/RXWgz7w0RQ

— Don Pettit (@astro_Pettit) August 7, 2025

Spanning more than 100,000 square kilometres, the delta is a lifeline for millions, supporting rich farmlands, vibrant fisheries, and the UNESCO-listed Sundarbans mangrove forest.

Pettit’s use of near-infrared imaging reveals a striking contrast between lush vegetation and winding waterways, producing a vivid clarity impossible to achieve with standard photography.

Beyond its visual beauty, the technique allows scientists to monitor plant health, water distribution, and environmental changes, which is key to understanding how this vast and dynamic ecosystem adapts to shifting climate patterns.