Dark streaks on Mars may be caused by salts and melting ice | Space
February 18, 2021 Researchers at the SETI Institute say that mysterious dark streaks on sun-facing slopes on Mars, debated about for years, may be small landslides caused by a combination of salts and melting ice just below the surface. A sample of Mars analog crust (imitation Martian soil) containing sulfate salts (blue and pink). The new study suggests that such salts and melting ice just below the surface on Mars could cause the enigmatic dark streaks on sun-facing slopes. Image via Janice Bishop/ SETI Institute. For years now, scientists have been trying to figure out what causes weird da...
Source: earthsky.org
