The stunning image of Earth that resembles "arteries in your retina"

NASA astronaut Don Pettit has captured an impressive image of the Betsiboka River estuary in Madagascar from the International Space Station (ISS), located approximately 250 kilometers above the Earth's surface. In his post, Pettit referred to the image saying, "Betsiboka River in Madagascar, reminds me of the arteries of your retina." The estuary exhibits a vibrant red color due to the high concentration of iron-rich sediments carried by the river.

This phenomenon is a clear example of the rapid coastal transformation that the region has undergone, mainly due to extensive deforestation that has taken place in the area for over a century. This has led to severe soil erosion, which tends to turn a deep red after rainfall. Some astronauts have gone so far as to describe this image as "Madagascar bleeding into the ocean." The accumulation of sediments has obstructed waterways, making it difficult for boats to navigate upstream, which was previously possible.

Additionally, tropical storms have intensified erosion, as evidenced in 2004 when Cyclone Gafilo caused significant flooding and an increase in sediment flow. In response to these environmental challenges, the local government has launched initiatives to combat deforestation, promote reforestation, and mitigate soil erosion.

Pettit is known for his keen ability to identify striking views from space and does not hesitate to capture them with his camera. Throughout his career, he has shared other notable images, such as one of the Amazon basin where moonlight appeared to form "silver snakes." At 69 years old, Pettit remains the oldest active astronaut at NASA and recently shared his experience in space photography during an interview from the orbital laboratory.