Why Is the Martian Night Sky So Bright? New NASA Video Sheds Light on the Red Planet’s Glow

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Another factor is sunlight scattering at high altitudes. Even though the Sun sets on Mars just as it does on Earth, light continues to scatter off the high-altitude dust, keeping the sky bright for hours. This is why astronauts may one day be able to navigate or work during the “night” without artificial lighting—at least in the early evening.

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Human activity causes a new geological epoch. Rock on!

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Say hello to the “Anthropocene”, a new geological epoch brought about by humanity’s impact on planet Earth. A team of geologists say that ash from fossil fuels, plastic waste, rising seas (which are triggering a dramatic increase in upland erosion), and radioactive particles littered by nuclear bomb tests are all contributing to permanent changes in Earth’s rocks. […]

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