nature documentary films to watch online & streaming free

The Big Bang Theory

The Big Bang Theory

Professor Jim Al Khalili delves into over 50 years of the BBC science archive to tell the story behind the emergence of one of the greatest theories of modern science, the Big Bang. The remarkable idea that our universe simply began from nothing has not always been accepted with the conviction it is today and, from fiercely disputed leftfield beginnings, took the best part of the 20th century to emerge as the triumphant explanation of how the universe began.

Using curious horn-shaped antennas, U-2 spy planes, satellites and particle accelerators, scientists have slowly pieced together the cosmological jigsaw, and this documentary charts the overwhelming evidence for a universe created by a Big Bang.

  • No time limits
  • No pop-up ads
  • No pop-under ads

Cosmos Documentaries

Image
The earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those...
Image
The Universe is still a place of mystery and wonder. As a cosmologist, I am exhilarated that we can make some...
Image
Professor Jim Al Khalili delves into over 50 years of the BBC science archive to tell the story behind the...
Image
We journey half a billion miles from the earth’s surface to a mini solar system of over 60 moons rotating...
Image
We can’t compare anything on earth to the biggest things known in space. The Lymann Alpha blob is a bubble...
Image
Particle physicist Professor Brian Cox asks, ‘What time is it?’ It’s a simple question and it sounds...
Image
A voyage through space and time with Professor Stephen Hawking. The series charts Professor Hawking’s quest...
Image
Approximately 5 billion years old and just under 333,000 times the mass of Earth, discover the enchanting...
Image
A Brief History of Time attempts to explain a range of subjects in cosmology, including the Big Bang, black...
Image
A fantastic Horizon (one of my favorites) that looks into the research on Dark Matter (with a twist of comedy...
Image
Only a man with the brain the size of Stephen Hawking’s would seriously accept the challenge of answering...
Image
ESA’s anniversary DVD film Hubble – 15 years of discovery covers all aspects of the Hubble Space...
Image
Astronomers are closing in on the proof they’ve sought for years that one of the most destructive objects...
Image
Like the plot of a sci-fi B movie, something weird is happening deep underground where the constant spin of...
Image
This documentary investigates one of the most controversial questions of the past hundred years… are we...
Image
In June 2000, astronomers made an extraordinary discovery. One that promises to solve one of the biggest...
Image
After 40 years, man is preparing to return to the Moon. But this time the astronauts won’t just land on the...
Image
Scorched by their proximity to the sun, Mercury and Venus are hostile worlds. One gouged with craters from...
Image
Without the moon, humans wouldn’t exist. Life, if it had started at all, would be in the earliest stages of...
Image
A stellar explosion, the supernova is the sensational death of a star. It can shine as bright as 100 billion...
Image
250 million years ago, long before dinosaurs roamed the Earth, the land and oceans teemed with life. This was...
Image
The great PBS science series Nova scores another hit with Mars: Dead or Alive, capturing all the excitement...
Image
On January 3, 2004, a compact rover named Spirit, cushioned inside a pyramid of balloons, hurtled through the...
Image
The Mandelbrot set – someone has called it the thumb-print of God – is one of the most beautiful and...
Image
For centuries scientists and philosophers have marveled at an eerie coincidence. Mathematics, a creation of...

You may also like these nature documentaries

Image
Forty years ago, a voracious predator was introduced into the waters of Tanzania's Lake Victoria where it quickly extinguished the entire stock of native fish. Its ecological impact aside,...
Image
Plants For A Future: Edible & Useful Plants For A Healthier World offers invaluable information on creating natural gardens, woodlands, and farms that are in harmony with nature's...
Image
In the competitive struggle for survival, less powerful animals have developed an ingenious array of strategies to find and kill their targets. Traps, lures and lies may be the best-known...
Image
Lost in the heart of the Peruvian Amazon, there is a vine that is said to talk to humans, giving an understanding to the secrets of life. The custodians of this plant are the medicine men,...
Image
For centuries scientists and philosophers have marveled at an eerie coincidence. Mathematics, a creation of human reason, can predict the nature of the universe, a fact physicist Eugene Wigner referred to as...
Image
We journey half a billion miles from the earth’s surface to a mini solar system of over 60 moons rotating around a powerful planet of gas. Its flowing colors and spots hold strange beauty, but contain...
Image
Human Body: Pushing the Limits takes you across continents and introduces you to people who have pushed their bodies to the max. This groundbreaking documentary uses CGI technology and hi-tech camera work to...
Image
Professor Jim Al Khalili delves into over 50 years of the BBC science archive to tell the story behind the emergence of one of the greatest theories of modern science, the Big Bang. The remarkable idea that...