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Falling space debris poses an escalating risk as spacecraft get stronger and more heat-resistant
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Falling space debris poses an escalating risk as spacecraft get stronger and more heat-resistant

A surge in rocket launches is filling orbit with satellites built from tougher, more heat-resistant materials — and when they fall back to Earth, they aren't always burning up the way we expect.

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Scientists make stunning discovery that could change our understanding of the Universe
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Scientists make stunning discovery that could change our understanding of the Universe

ScienceDaily·ScienceDaily·24 days ago
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Scientists may have uncovered a surprising secret behind why life exists at all. A new study suggests that the Universe’s fundamental constants — the deep physical rules that govern everything from atoms to stars — appear to sit within an incredibly…

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The Universe’s biggest black holes may be forged in violent mergers
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The Universe’s biggest black holes may be forged in violent mergers

ScienceDaily·ScienceDaily·24 days ago
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The Universe’s biggest black holes may not be born giants after all. Scientists analyzing gravitational-wave signals from dozens of black hole collisions found evidence that the heaviest black holes are likely “cosmic recyclers” — formed through repeated…

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Gravitational lensing sheds new light on Hubble constant controversy

Physics World·@IsabelleDum·2 months ago
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By studying how light from eight distant quasars is gravitationally lensed as it propagates towards Earth, astronomers have calculated a new value for the Hubble constant – a parameter that describes the rate at which the universe is exp...

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