资讯

ScienceAlert4 天
Terraforming Mars Isn't Impossible. New Study Describes First Step.
Terraforming Mars has been the long-term dream of colonization enthusiasts for decades. But when you start to grapple with ...
The Earth’s Worst-Ever Extinction Event Wiped Out 90% of All Animal Species
Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact ...
Earth’s First Crust Was Continental – Long Before Plate Tectonics Began
New research suggests that Earth's first crust, formed over 4.5 billion years ago, already carried the chemical traits we ...
Early Earth's first crust composition discovery rewrites geological timeline
“I began to wonder if we were asking the right question,” says Professor Turner. Together with collaborators across six ...
New restrictions on China's rare earths will likely disrupt tech and defense industries
China has tightened control over the global rare earth supply by introducing new export restrictions that could disrupt ...
New study reveals why North America is slowly ‘dripping’ into Earth's mantle
Geodynamic models say deep mantle flow from the long-subducted Farallon slab is likely behind the massive underground “drips” ...
Space.com8 天
How to debate a flat-Earther: Proven scientific arguments and strategies
Why do people believe the flat Earth theory and is it even worth debating? Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of Ask a Spaceman and Space ...