Cosmology
Why Faster-Than-Light Galaxies Break No Rules
Distant galaxies are receding faster than light. Physics permits it. Here is why the contradiction d...
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Astrophysics
The Dead Star Orbiting Sirius and What It Means
Sirius has a companion — a dead star the size of Earth. What it has already done to physics is remar...
Astrophysics
Why GN-z11's Black Hole Should Not Exist
A black hole from 400 million years after the Big Bang is feeding at five times the physical limit —...
Astrophysics
Why We Cannot Reach Alpha Centauri
The nearest star system is visible to the naked eye. It also cannot be reached by any technology hum...
Cosmology
Why the Giant Arc Should Not Exist
A curved structure 3.3 billion light-years long was found where physics says nothing that large can...
Thermodynamics
Why Energy Cannot Be Destroyed
Energy seems to vanish constantly. Physics says otherwise — and the reason why goes deeper than most...
Relativity
Where Space and Time Actually Meet
Space and time feel like completely different things. Physics says they are not — and the proof is h...
Cosmology
Black Holes Born Before the First Atom
Before stars existed, the Big Bang was already making black holes. Here is how, and why we may final...
Cosmology
Why the Triangulum Galaxy Cannot Be Stopped
A galaxy three million light-years away is falling toward us. It has been falling for longer than Ea...
Astrophysics
Why White Dwarfs Are Not Actually Dead
White dwarfs look like the universe's most passive objects. The physics inside them tells a complete...
Cosmology
Why Galaxy Mergers Often Kill Star Formation
Two galaxies collide and billions of stars should be born. Instead, the universe goes quiet. The rea...
Astrophysics
Why the Dark Between Galaxies Is Not Empty
The space between galaxies in a cluster holds trillions of displaced stars, glowing faintly in a lig...