共找到 20 条结果
A colossal valley near Mars’s equator is revealing dramatic clues about the Red Planet’s watery and volcanic past。 Stretching roughly 1,300 kilometers, Shalbatana Vallis was carved billions of years ago when enormous floods of groundwater burst onto the surface, gouging deep winding channels across the landscape。 Today, the region is a striking mix
Earth is quietly collecting radioactive debris from an ancient stellar explosion as our Solar System drifts through a giant cloud of gas and dust between the stars。 Scientists analyzing Antarctic ice up to 80,000 years old discovered traces of iron-60 — a rare isotope forged in supernova explosions — and found evidence that this “cosmic ash” has be
Treasury Secretary Scott Bessent did not say when these talks would happen。 There are fears in the United States and China about the threats from A。, but neither side is willing to slow down its development
Scientists in Japan have developed a new way to instantly detect elusive quantum “W states,” a major milestone for quantum technology。 The breakthrough could help unlock faster quantum communication, teleportation, and powerful new computing systems
暂无摘要，请点击原文查看详情