Expert Voices Paul Sutter: Explaining astrophysics and astronomy
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Why Physicists Are Interested in the Mysterious Quirks of the Heftiest Quark
By Paul Sutter last updated
The top quark is about 100 trillion times heavier than the up quark. But why?
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How did we figure out atoms exist?
By Paul Sutter last updated
The concept of atoms had been floating around off and on for a few millennia, but it took some clever experimentation to pinpoint their existence.
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'Spooky action at a distance' can lead to a multiverse. Here's how.
By Paul Sutter published
Some interpretations of quantum mechanics propose that our entire universe is described by a single universal wave function that constantly splits and multiplies.
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What makes Newton's laws work? Here's the simple trick.
By Paul Sutter published
Lagrange found that the difference between an object's kinetic energy and potential energy unlocked something deeply profound about the universe.
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Unusual 'revived' pulsars could be the ultimate gravitational wave detector
By Paul Sutter published
Astronomers hope to use pulsars scattered around the galaxy as a giant gravitational wave detector. But why do we need them, and how do they work?
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Just how big can a super-Earth get while staying 'habitable'?
By Paul Sutter published
But could these giant, rocky planets actually sustain the conditions for life? Or is life limited to smaller planets like our own?
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Planets made of dark matter may have blown up, and we could see them
By Paul Sutter published
A new hypothesis proposes that a large fraction of dark matter may be bound up inside tight balls the size of Neptune — so-called dark matter planets.
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Black holes may die differently than we thought
By Paul Sutter published
New research motivated by string theory suggests possible, and equally strange, fates for evaporating black holes.
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