Liquid error: Could not find asset snippets/bold-common.liquid

Dark Matter And Dark Energy

Author:

SKU: 9781785785504

R 129.00 R 225.00

All the matter and light we can see in the universe makes up a trivial 5 per cent of everything. The rest is hidden. This could be the biggest puzzle...
Shipping Time Ships in 4 to 7 working days

Only 6 left in stock, order soon!
All the matter and light we can see in the universe makes up a trivial 5 per cent of everything. The rest is hidden. This could be the biggest puzzle that science has ever faced.

Since the 1970s, astronomers have been aware that galaxies have far too little matter in them to account for the way they spin around: they should fly apart, but something concealed holds them together. That ’something' is dark matter – invisible material in five times the quantity of the familiar stuff of stars and planets.

By the 1990s we also knew that the expansion of the universe was accelerating. Something, named dark energy, is pushing it to expand faster and faster. Across the universe, this requires enough energy that the equivalent mass would be nearly fourteen times greater than all the visible material in existence.

Brian Clegg explains this major conundrum in modern science and looks at how scientists are beginning to find solutions to it.

Dimensions :
Format : Soft Cover
Age Group : ADULT
Page Numbers :
The Various Books we sell.
Clearance - These will generally be in the clearance category, some of these titles might be slightly defective but we do our best to make sure they are in mint quality before sending. Please see terms and conditions for more info.
Stock on Hand - These are the titles we have on hand in our warehouse that we can ship to you in a jiffy.
Publisher stock - these are titles that come from various suppliers, the delivery time for these will be higher than our on hand items which will be indicated in the dispatch time.