constrained by the world

the youngest and only child of Kelley's second marriage to Mitzi

you can get to know these devoted men as you never have before

how we are the same and how we are different – and lots more in the fourth book in the internationally best-selling Great Big Book series

Dark Matter and Dark Energy: The Hidden 95% of the Universe General Fiction constrained by the worldAll 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