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Time

Physics

When time runs backwards: What thermodynamics can tell us about life

The second law of thermodynamics, which gives us an arrow of time, is routinely violated at the smallest scales - an insight that is already yielding fresh clues to some of biology's great mysteries

Features

Physics

Measuring time accurately increases the entropy in the universe

News

Physics

Did time flow in two directions from the big bang, making two futures?

Features
ROBERT PATTINSON and JOHN DAVID WASHINGTON in Warner Bros. Pictures鈥� action epic "TENET," a Warner Bros

Technology

Tenet review: Time twisting fun that is head-spinningly hard to grasp

Culture

Physics

Inside the incredibly slow race to reinvent time

Features
hands artwork

Physics

In the quantum realm, cause doesn鈥檛 necessarily come before effect

Features
clock

Humans

William Gibson’s Agency drops time-travel paradoxes for big questions

Culture
Doctor Strange

Physics

Time travel without paradoxes is possible with many parallel timelines

News
Space

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

Video
Illustration of a supermassive black hole

Space

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

Planets normally form gradually from the disk of dust around a star. But the same thing could happen around black holes, forming thousands of super heavy planets

News

Physics

The time paradox: How your brain creates the fourth dimension

Features

Earth

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

Culture

Physics

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

Culture
Technology

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

Video