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Doctor Strange

Physics

Time travel without paradoxes is possible with many parallel timelines

Time travel brings up paradoxes that break the laws of physics, but multiple similar timelines running parallel to one another could get around this

News

Time travel and black holes: The weird promise of Einstein’s universe

Video

Time travel and black holes: The weird promise of Einstein’s universe

Video

Illustration of a supermassive black hole

Space

Some planets may orbit a supermassive black hole instead of a star

News

blurred man

Physics

The time paradox: How your brain creates the fourth dimension

Features

Albert Einstein smoking a pip

People in Science

Albert Einstein

General_relativity

Definition

General relativity

Second law of thermodynamics

Definition

Second law of thermodynamics

Black holes

Definition

Black holes

Svalbard vault

Earth

Underland is a profound journey into the mirror world of the dead

Culture

stone inscription

Physics

Time Tries All Things review – Take time out to enjoy a dreamlike show

String theory, triangulation, relativity - who cares if physicists trying to explain time have reached an impasse? A new show presses pause on hunting for answers

Culture

Video

Helen Margolis: How atomic clocks let us keep time like never before

Video

Video

Carlo Rovelli: The nature of time

Video

Earth

Timefulness review – our impulsive and pugnacious age needs geology

Culture

Humans

Idly tapping your fingers can make you think time has slowed down

News