How Big is the Universe?

Category: Astronomy

It is one of the most baffling questions that scientists can ask: how big is the Universe that we live in? Horizon follows the cosmologists who are creating the most ambitious map in history - a map of everything in existence. And it is stranger than anyone had imagined - a Universe without end that stretches far beyond what the eye can ever see. And, if the latest research proves true, our Universe may just be the start of something even bigger. Much bigger.

Make a donation

Buy a brother a hot coffee? Or a cold beer?

Hope you're finding these documentaries fascinating and eye-opening. It's just me, working hard behind the scenes to bring you this enriching content.

Running and maintaining a website like this takes time and resources. That's why I'm reaching out to you. If you appreciate what I do and would like to support my efforts, would you consider "buying me a coffee"?

Donation addresses

Buy Me a Coffee at ko-fi.com

patreon.com

BTC: bc1q8ldskxh4x9qnddhcrgcun8rtvddeldm2a07r2v

ETH: 0x5CCAAA1afc5c5D814129d99277dDb5A979672116

With your donation through , you can show your appreciation and help me keep this project going. Every contribution, no matter how small, makes a significant impact. It goes directly towards covering server costs.

You might also like

Decide To Listen
4:42
Decide To Listen

Our species has discovered a way to communicate through the dark, to transcend immense distances

5/10 • The Sagan Series • 1989 • Astronomy

Chasing Pluto
54:05
Chasing Pluto

On July 14, 2015, the New Horizons spacecraft, one of the most advanced ever built, is scheduled to fly by Pluto to take the very first detailed images of the dwarf planet. After nine years and 3 billion miles, we will finally get a close look at this strange, icy world, but only if the craft can survive the final, treacherous leg of its journey, which could take it through a dangerous field of debris.

NOVA PBS • 2015 • Astronomy

A Planet
59:04
A Planet

With his trademark wit, Richard Hammond takes on the ultimate engineering project: how on earth do you build a planet that is just right for life? What do you need to build a planet like ours, and what happens if you get anything wrong? With eye-popping graphics, Richard Hammond opens up a cosmic toolbox to work it out. He's going to build the whole thing, piece by piece, from the top of a two-mile high tower in the Californian desert.

S1E1 • Richard Hammond Builds... • 2013 • Astronomy

Low Mass Stars
12:02
Low Mass Stars

Today we are talking about the life -- and death -- of stars. Low mass stars live a long time, fusing all their hydrogen into helium over a trillion years. More massive stars like the Sun live shorter lives. They fuse hydrogen into helium, and eventually helium into carbon (and also some oxygen and neon). When this happens they expand, get brighter, and cool off, becoming red giants. They lose most of their mass, exposing their cores, and then cool off over many billions of years.

29 • Crash Course Astronomy • 2015 • Astronomy

NASA's Journey to Mars
42:28
NASA's Journey to Mars

NASA is on a mission to send humans to Mars within just 15 years, but to reach this next frontier of space exploration, experts must discover new technology and cutting-edge science that protects astronauts from the Red Planet's deadliest killers.

S8E2 • How the Universe Works • 2020 • Astronomy

The Lost Worlds of Planet Earth
44:20
The Lost Worlds of Planet Earth

The Ship of the Imagination embarks on a journey through space and time to grasp how the autobiography of the Earth is written in its atoms, its oceans, its continents and all living things. Later, American geologist Marie Tharp creates the first true map of Earth's ocean floor, and discovers microscopic life that exists deep beneath the ocean.

S1E9 • Cosmos: A Spacetime Odyssey • Astronomy