Mysterious water-like streaks on Mars might be sand flows instead0

• From Around the Web, Space
• March 23, 2017

Dust to dust. The mysterious dark flows on Mars may not be water after all. Instead, they could be rivulets of sand, set in motion by sunlight on the Martian surface. The dark streaks form on Mars’s slopes during warm seasons, and are known as recurring slope lineae. While there is no direct evidence of