Last Watched

"Astronomical unit"  Sort by

Going Big

   2022    Science
In the concluding episode of the series, Jim encounters ever larger cosmic structures to reveal the latest breakthroughs in our understanding of the universe. For example, Jim comes face to face with our galactic home, the Milky Way, a monstrous structure sculpted by the gravitational forces of dark matter. Jim finds out from pioneering researcher Adrian Fabian about the black hole at its centre, whose strange behaviour includes emitting the lowest note that can be heard in the cosmos.
At an even greater scale, Jim encounters huge structures such as the Laniakea Supercluster, of which the Milky Way is only a tiny part. Then there’s the 'Giant Arc', a collection of galaxies that account for more than three per cent of the observable universe. Jim learns from its discoverer, British PhD student Alexia Lopez, that this gargantuan structure is forcing scientists to reassess their theory of how the universe evolves and may overturn some of the most fundamental principles in physics.
Series: Secrets of Size: Atoms to Supergalaxies
Dinosaur Planet

Dinosaur Planet

2003  Science
Leaving Neverland

Leaving Neverland

2019  Culture
Most Wanted: Teen Hacker

Most Wanted: Teen Hacker

2025  Technology
Mammals

Mammals

2024  Nature
The Jinx

The Jinx

2015  History
Motivation

Motivation

2017  Culture
Frozen Planet II

Frozen Planet II

2022  Nature
P.U.L.S.E

P.U.L.S.E

2006  Art