Renewable energy will rule only when weather data drives the design of a new electric grid. By Peter Fairley.

The discovery of brain structures that apparently mark time has raised a larger question: What is time, anyway? By Ingfei Chen.

Dogs beat their domesticated rivals, cats, in a new attempt to measure cognitive power. By Josh Fischmann.

The discovery of brain structures that apparently mark time has raised a larger question: What is time, anyway? By Ingfei Chen.

The discovery of brain structures that apparently mark time has raised a larger question: What is time, anyway? By Ingfei Chen.

Bacterial Builders. Frances Arnold is directing bacteria to build molecules never before assembled in nature. By Emily Velasco.

Can largely inaudible ultrasound signals from widespread electronics be responsible for headaches & dizziness? By Lee Hotz.

Many toys promise to help babies read, learn, do math and walk earlier than expected - with dubious science. By Erik Vance.

Gravitational waves could solve the hotly contested string theory by means of cutting-edge laser detectors. By Hannah Devlin.

The "Greatest Pandemic in History" was 100 years ago - but many of us still get the basic facts wrong. By Richard Gunderman.