SCIENCE
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Stars alone can’t explain black holes, JWST data reveals | by Ethan Siegel | Starts With A Bang! | Jan, 2024
The overdense regions that the Universe was born with grow and grow over time, but are limited in their growth…
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Ask Ethan: Why doesn’t radiation dominate the Universe? | by Ethan Siegel | Starts With A Bang! | Jan, 2024
At the start of the hot Big Bang, the Universe was rapidly expanding and filled with high-energy, very densely packed,…
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4 unexpected lessons from the Milky Way’s weirdest star | by Ethan Siegel | Starts With A Bang! | Jan, 2024
The supernova remnant 1E0102.2–7219 (inset) sits next to the nebula N76 in a bright, star-forming region of the Small Magellanic…
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How many times must you fold a paper to reach the Moon? | by Ethan Siegel | Starts With A Bang! | Jan, 2024
If you fold a piece of paper in half enough times, you could eventually cover enough distance that you could…
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Ask Ethan: What if the Sun were a grain of sand? | by Ethan Siegel | Starts With A Bang! | Jan, 2024
A typical grain of sand might only be from millimeter to sub-millimeter sized, with quintillions of grains of sand found…
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What was it like when the Universe formed the most stars? | by Ethan Siegel | Starts With A Bang! | Jan, 2024
An artistic representation of a starburst galaxy, where the entire galaxy itself behaves as a star-forming region, using data from…
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What was it like when supermassive black holes arose? | by Ethan Siegel | Starts With A Bang! | Jan, 2024
The farther away we observe, the closer in time we find ourselves looking near the start of the hot Big…
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What was it like when the first galaxies began to form? | by Ethan Siegel | Starts With A Bang! | Jan, 2024
An illustration of the galaxy CR7, which was originally hoped would house multiple populations of stars of various ages (as…
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What was it like when the very first stars died? | by Ethan Siegel | Starts With A Bang! | Dec, 2023
X-ray emissions that are large, extended, and structure-rich highlight a variety of supernovae seen in the galaxy. Some of these…
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What was it like when the first stars began to shine? | by Ethan Siegel | Starts With A Bang! | Dec, 2023
An illustration of the first stars turning on in the Universe. Without metals to cool down the clumps of gas…
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