Lonar Lake, located in India's west-central state of Maharashtra, went from a green tint to pink over a few days.
The lake is located about 310 miles east of Mumbai and is believed to have formed between 35,000 to 50,000 years, according to NASA.
Satellite photos from NASA show the lake on May 25 still sporting its green hue before a second image from June 10 shows the changeover.
"Formed 35,000 to 50,000 years ago, Lonar is the only 'fresh' impact structure in basalt on Earth, making it an important analog for impact craters on the surface of the Moon," NASA notes.