科学与环境

How space weather powers auroras in the sky and threatens power grids on the ground

来源: Phys.org - latest science and technology news stories · 发布于

How space weather powers auroras in the sky and threatens power grids on the ground
来源: Phys.org - latest science and technology news stories

An aurora is one of nature's most spectacular light shows: It looks like green or red curtains rippling across the night sky. When viewed from the ground, this colorful display might seem far away and disconnected from anything happening on Earth's surface.

An aurora is one of nature's most spectacular light shows: It looks like green or red curtains rippling across the night sky. When viewed from the ground, this colorful display might seem far away and disconnected from anything happening on Earth's surface.

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Earth's gravity may have kept the early moon's volcanic heart beating
科学与环境

Earth's gravity may have kept the early moon's volcanic heart beating

We typically think of the moon as a static, floating object that has remained the same for basically its entire lifetime, with an occasional asteroid impact serving as an exception. That understanding is grounded in physics—the moon should have cooled rapidly after forming when a

Phys.org - latest science and technology news stories ·

Earth's churning mantle may have created the Great Unconformity
科技与人工智能

Earth's churning mantle may have created the Great Unconformity

In the Grand Canyon, there is a line in the rock where time seems to have gone missing. Ancient crystalline rocks mark its bottom, while sandstones laid down as life started to diversify during the Cambrian explosion mark the top. “It’s called the Great Unconformity, and it’s a g

Ars Technica - All content ·