What is everything? What is nothing? This two-part documentary follows host and professor Jim Al-Khalili as he searches for the answers to these deep and complex questions. In order to discover what "everything" is, Al-Khalili looks at what the universe might actually look like, and how human understanding of space has been influenced by math and science, while the concept of "nothing" is explored via the world of the super-small. As Al-Khalili discovers, these two ideas -- everything and nothing -- are connected in one very profound way: everything came from nothing. Subscribe to Spark for more amazing science, tech & engineering videos: https://goo.gl/LIrlur 🚀 Join the Spark Channel Membership to get access to perks: https://www.youtube.com/channel/UCMV3aTOwUtG5vwfH9_rzb2w/join You can now become a History Hit member right here on YouTube! Join for access to a new exclusive documentary every week, and access to over 160+ of our documentaries presented by world renowned historians like Dan Snow, Eleanor Janega, Tristan Hughes, Mary Beard, Matt Lewis and more. Get an exclusive release every week by signing up here: https://bit.ly/4pyExyn Any queries, please contact us at: [email protected] #Spark
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A very good presentation, very well articulated, and something laypeople can follow. Bravo!
I feel so insignificant!!😟
I was taught about Copernicus at school of course. It was impressive to see the diagram here though, with the planets in the right sequence! Mercury, Venus, Earth, Mars. What an incredible work of visualisation!
The thumbnail lol. Dude would make a good TV licence goon.
Even now, we are still discovering new things in the universe, yet we are here, on a planet, with everything we need, to survive and yes, even to enjoy life, despite the problems we face
I have no idea why people thought it necessary to post critical responses ("this is 26 years old", "this previously had a different title", "the BBC and Britain are no longer the centre of the universe" etc). Prof Jim Alkhali is a well known academic and public disseminator of knowledge, seen on TV and heard on radio even in 2026. The information he gives in this video remains correct and is given in a simple explanatory manner. It's not as though we have discovered this year that all previously understood knowledge is wrong! It is a very decent video and well worth a viewing.
Loud violin not needed at hype points it’s cool enough information
That opening comment re the sun compared to grains of sand on all the beaches of the planet was made by the revered Dr. Carl Sagan over 40 years ago in his 'Cosmos' series. 😮
Aristarchus of Samos was the first person known to propose a heliocentric model of the universe, placing the Sun at its center with Earth revolving around it. His ideas anticipated those of Nicolaus Copernicus nearly two millennia later. He also reasoned that the stars must be vastly distant to show no observable parallax.Please don't try to change history!
Well it took a long time to get there, but now I totally understand why the sky is dark at night.
I watched from beginning to end as I have always been fascinated by this subject. Jim, does a great job in putting over in the simplist way not that any of this is simple. The scale of the universe is something that in my view the human brain can just not truly comprehend infinity ? Saying that you have to be in ore of the great minds that have got us this far in your understanding to date. I have always had this outrageous wish that one night I would have a dream and the answers could come to me! That would keep the cosmologist busy proving me right or wrong?
Is the red shift possibly just that the other frequencies are simply being drawn off by the gravitational pull of the galaxies between us and distant stars rather than that they are speeding up?
I was lost and now I am found (regardless of whether or not I have seen this article before, The Timing is Perfect given the present military and scientific chaos in the World) .... SO! Take a deep breath and take one step backwards and consider Again our progress.... Einstein:- "What meaning can we give to distance if it doesn't have a start and an end point" . Thank you very much Spark!
A quality A2 resource - thx Jim
Does anyone know what the music is around 13:20?
I find it hard to believe Cambridge doesn't pay their professors enough to afford to see a dentist.
Astonishing simply beautiful
Jim should know by now the true shape of where we live and what we live under.
sensational - every young person on the planet should see this - kudos to jim al-khalili and his collaborators ( both present and past )
It is truly incredible to see how scientists manage to count the number of things they cannot—and never will be able to—see.