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4gravitons.com
| | www.esa.int

The Euclid mission aims to uncover the mysteries of the dark Universe. This ominous-sounding invisible part of the cosmos makes up more than 95% of the mass and energy in our Universe. But what is it?
4.8 parsecs

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| | www.quantamagazine.org

When Steven Weinberg died last month, the world lost one of its most profound thinkers.
5.3 parsecs

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| | profmattstrassler.com

Einstein's gravity is widely seen as the most beautiful theory in all of physics. But dark energy, quantum physics, and string theory all raise questions.
5.4 parsecs

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| | science.nasa.gov

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17.1 parsecs

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