NOVA Wonders

Clues reveal how animals talk to each other, from spider thumps and mice mating songs to signals among the chimps.

Non-human bacteria, viruses and fungi live in and on humans, making the body like an ecosystem for trillions of microbes.

From the Kepler mission's discovery of thousands of exoplanets to high-tech telescopes still being developed, prospects for discovering life beyond Earth have never been stronger.

Artificially intelligent machines influence everyday life, from interpreting emotions to acting as personal assistants.

Advances in genetic engineering and synthetic biology give researchers the ability to create DNA and edit it into existing genomes with more ease and less cost than ever before.

Powerful telescopes peer deeper into the cosmos, allowing scientists to better study dark matter and dark energy.