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Life on Mars? Better tools needed to get the answer(图)
火星 生命 天体生物学
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2023/5/18
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How fast is the universe expanding? Galaxies provide one answer(图)
universe expanding Galaxies answer
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2021/4/9
Determining how rapidly the universe is expanding is key to understanding our cosmic fate, but along with more precise data comes a conundrum. Estimates based on measurements in our current universe d...
Quasars may answer how starburst galaxies were extinguished
Quasars answer starburst galaxies extinguished
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2017/9/1
Some of the biggest galaxies in the universe are full of extinguished stars. But nearly 12 billion years ago, soon after the universe first was created, these massive galaxies were hotspots that brewe...