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Physics

Time cloak hides events by splicing them movie style

Data pulses can be hidden in gaps in a light beam, erasing any record of their presence and potentially allowing secret messages to be sent without a trace

News

It's time physics recognised that time is real

Physics

It's time physics recognised that time is real

Opinion

The self: You think you live in the present?

Humans

The self: You think you live in the present?

Features

The self: What are we to do?

Life

The self: What are we to do?

Features

A computer cosmos will never explain quantum physics

Humans

A computer cosmos will never explain quantum physics

Opinion

Beating heart of a quantum time machine exposed

Regulars

First real time-travel movies are loopers

Physics

First real time-travel movies are loopers

News

2012 review: The year in the physical sciences

Physics

2012 review: The year in the physical sciences

News

'The idea we live in a simulation isn't science fiction'

Space

'The idea we live in a simulation isn't science fiction'

Opinion

Space-time waves may be hiding in dead star pulses

Space

Space-time waves may be hiding in dead star pulses

The first direct detection of gravitational waves may happen in 2013, if new studies of pulsars affected by galaxy mergers are correct

News

Physics

Theory of everything says universe is a transformer

News

Life

Brain circuits run their own clocks

News

Physics

Photon reaches from beyond the grave in quantum trick

News

Technology

Flickering lights help smartphones keep time

News