科学与环境
Earth's mantle was 'breathing' oxygen a billion years before it hit the atmosphere, mineral time capsules reveal
来源: Phys.org - latest science and technology news stories · 发布于
Why is there life on Earth? It's one of the oldest questions humans have asked, and as far as we know, our planet is the only one that holds the answer.
Why is there life on Earth? It's one of the oldest questions humans have asked, and as far as we know, our planet is the only one that holds the answer.
相关报道
Scientists uncover the 2.3-billion-year-old secret that helped keep Earth habitable
Scientists may have solved a 2.3-billion-year-old mystery about how Earth maintained enough oxygen to support life. Ancient rocks reveal that phosphorus recycling in the oceans created a self-sustaining cycle that helped keep oxygen levels high, even as the planet underwent drama
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Patchier permafrost is linked to more intense hillslope erosion in Alaska
The Arctic is warming four times faster than the rest of the globe, and scientists are racing to understand how that fact affects the region's landscapes and ecosystems. Permafrost thaw is one of the most visible signs of climate change, with whole hillslopes of previously frozen
Phys.org - latest science and technology news stories ·
Scientists may have finally solved the mystery of the Moon’s two faces
Scientists may have solved a long-standing mystery about why the Moon’s two sides are so different, using samples collected from its farside for the first time. Their findings suggest that uneven heating from Earth's gravitational pull drove enormous flows of ancient magma, creat
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Europe's new Sentinel-3C satellite just sent back spectacular images of Earth
Europe's Sentinel-3C satellite has returned breathtaking images of Earth just two weeks after launch, revealing the snowy Alps, frozen Arctic islands, and brilliant turquoise Caribbean waters. Its first measurements also show promising results for tracking rising seas, melting ic
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NASA spots a giant patch of Moon-like rock on Earth
An astronaut aboard the International Space Station photographed a remarkable formation in Madagascar that looks surprisingly similar to the Moon’s bright highlands. Made of anorthosite, a rock abundant on the lunar surface, the formation dates back at least 600 million years and
All Top News -- ScienceDaily ·