The oldest map of the cosmos bears invisible wrinkles of gravity: the Sachs-Wolfe effect
The cosmic microwave background preserves traces of tiny gravitational variations—the seeds that shaped matter, primordial light, and the structure of the Universe as we observe it today. The cosmic…
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A nearby black hole as a window into the early universe
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Quasar at the Dawn of the Universe “Blinked” for Astronomers have observed the flickering quasar J0439+1634 as it appeared just 850 million years after the Big Bang — one of the earliest such objects
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Hubble Detects Ultraviolet Light from Early Galaxy, Shedding Light on Cosmic Reionization
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go.nasa.gov·16d agoBlack Holes From the crushing grip of gravity to the edge of known physics, black holes are the Universe’s most extreme objects. They warp spacetime, devour stars, launch cosmic jets, and challenge ou
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Scientists edge closer to detecting invisible dark matter that shapes galaxies
Will we finally be able to answer one of astronomy’s hardest questions: what is most of the matter in the universe made of?
universal-sci.com·10d ago
New Method Uses Correlation Drop to Pinpoint the Start of Cosmic Reionization
We still don’t know very much about the mysterious epoch of reionization. In today’s bite, learn about a new way to estimate when reionizati
astrobites.org·1d agoNew Method Uses Correlation Drop to Pinpoint the Start of Cosmic Reionization
We still don’t know very much about the mysterious epoch of reionization. In today’s bite, learn about a new way to estimate when reionizati
astrobites·1d ago
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