When astronauts on the International Space Station (ISS) were flying more than 400 km above the Earth’s surface, they observed and captured the scene of a leaking area of dark red blood fluid on the planet.
According to the page, these pictures are causing a lot of speculation on social networks. IFLScience,
There are many reasons behind this incident.
As explained by NASA’s Earth Observatory, these two images were taken in September 2023 by a member of the Expedition 69 crew and another member of the Expedition 70 crew using a smart digital camera. Usually from Nikon.
The first photo, taken on September 7, shows Laguna Colorado, a shallow salt lake in the Bolivian Andes. Here, the rusty red color is the result of an explosion of red algae under optimal environmental conditions, especially in this shallow, highly saline water.
A similar process occurs in other water bodies around the world, such as the Great Salt Lake in Utah (USA), which often turns dark pink.
The second photo, taken on September 30, shows the Betsiboka River in Madagascar. In this case, the color of the river is red due to iron-rich sediment in the water.
it is similar Similar to the Blood Falls of the famous Taylor Glacier in East Antarctica – the river is named after the British scientist Thomas Griffith Taylor, who first discovered the Blood Falls during an expedition in early 1911. At the time, Taylor and his team attributed the vibrant colors to red. Algae.
However, a 2023 study analyzed water samples from Blood Falls and found a lot of iron-containing nanoparticles that turn red when oxidized.
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