How the Universe Works - Season 9 (2021)

New discoveries reveal how bacteria, viruses and other alien micro-organisms built life on Earth.

Dead stars called white dwarfs may be the key to understanding the cosmos.

Discover how galaxies are locked in continual combat across the universe.

A supernova hasn't occurred in 400 years, and the search is on to locate which star may be next.

New science reveals why neutrinos are the universe's strangest particles.

Scientists have discovered one of the first supermassive black holes.

Gravitational waves allow scientists to explore the universe in a new way.

An explosion in the discovery of exoplanets is challenging everything we know about our universe; experts use cutting-edge astronomy to investigate these mysterious alien worlds and how they defy the laws of physics.