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Brown dwarfs such as “The Accident” are illuminating the murky borderlands that separate planets from stars.
Theorists are in a frenzy over “fractons,” bizarre, but potentially useful, hypothetical particles that can only move in combination with one another.
The root of today’s quantum revolution was John Stewart Bell’s 1964 theorem showing that quantum mechanics really permits instantaneous connections between far-apart locations.
These ultrabright flashes have recently been tracked for days, upending ideas about the cataclysms that create them.
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