SCIENCE
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Cosmic dust: “too much, too soon” no longer!
Even the youngest galaxies are often dust-rich, even with very low levels of heavy elements. Nearby dwarf galaxy Sextans A…
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Ask Ethan: Why is there no such thing as antigravity?
In general relativity, matter and energy curve spacetime, which we experience as gravity. Why can’t there be an “antigravity” force?…
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10 quantum myths that must die in the new year
The very word “quantum” makes people’s imaginations run wild. But chances are you’ve fallen for at least one of these…
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The trick to identifying JWST images in an instant
If you can identify a foreground star, the spike patterns are a dead giveaway as to whether it’s a JWST…
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Ask Ethan: Why does something exist instead of nothing?
Perhaps the most remarkable fact about the Universe is simply that it, and everything in it, exists. But what’s the…
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The simplest explanation for ultra-high-energy cosmic rays
The highest-energy particles could be a sign of new, unexpected physics. But the simplest, most mundane explanation is particularly… Continue…
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Ask Ethan: Can stars form within the expanding Universe?
Our Universe doesn’t just expand and cool, but the expansion itself is accelerating. Can stars form under such structure-erasing… Continue…
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The USA’s Genesis Mission: moonshot or madness?
The Department of Energy’s newest mission seeks to make a unified AI platform across all national labs. Will it help…
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Starts With A Bang podcast #124 — Astrochemistry
It takes a wide variety of processes in the Universe to make all the elements that populate space today. We’re…
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Does science reveal the absolute truth about reality?
Science isn’t absolute. Its truths and discoveries enable us to approximate reality, but we must always remain open-minded to revisions.…
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