Blood Falls is a waterfall bursting from the Taylor Glacier in McMurdo Dry Valleys, Antarctica, which was spotted in 1911 by Australian geologist Griffith Taylor.
Scientists initially believed it got its blood red hue from algae living in the water.It wasn’t until 2003 when researchers concluded that the liquid was full of iron oxide, and was likely the remains of a 5 million-year-old ancient lake.
But now a study shows that the red water is continually flowing thanks to a rare hydraulic system which may have been been flowing for one million years.
Water releases heat energy as it freezes, and this is enough to melt surrounding cold ice enough to turn it to liquid. This process allows the water to flow from Blood Falls.
This discovery confirms that the glacier has its own water system.