Uncategorized
- Planetary Science
Fresh Mars: Craft views new gullies, craters, and landslides
A comparison of images taken just a few years apart by a Mars orbiting spacecraft reveals recent landslides, freshly carved gullies, and a 20-meter-wide crater gouged in the planet's surface no earlier than 25 years ago.
- Earth
Steep Degrade Ahead: Road salt threatens waters in Northeast
Using road salt to clear icy highways in the northeastern United States is increasingly tainting streams throughout the region.
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Chloride concentration in streams should be a concern to everyone. However, projecting problems at century’s end based on the present rate of chloride increase is bad science.
