buff.ly/2Y9cYDm⠀ Crater Lakes Overflowed and Carved Valleys on Mars ⠀ ⠀ In a new paper published in Nature, with lead authors from The University of Texas at Austin and the Planetary Science Institute, researchers found that some of the surface of Mars was shaped by massive floods that overflowed crater rims. These types of crater lakes are not unheard of here on Earth, and while most people are familiar with the more volcanic kind, we do also have examples of meteor craters with lakes. One of the most famous is Manicouagan in Quebec, Canada.⠀ ⠀ About 3.5 billion years ago, Mars had a lot of water on its surface, including large lakes, some of which were in impact craters. When the water levels got too high, the lakes burst over the crater rims and flowed down onto the flatter surface below, quickly carving out deep canyons. Again, similar flooding occurred here on Earth at the end of the last ice age, where lake waters burst through into the northwestern United States and Cent...