Recommend me some Astro books?

[04Stefan07]

I have the best every book on Astronomy which I reiceved as an Xmas gift last year. It's called 'Universe' and has EVERYTHING you could think of!

There are some topics in that book that I want to read about in more detail and wanted to ask if anyone can recommend me some good books. Topics include:
- Time travel
- Black Holes & Wormholes
- Size of the universe
- Theories on multi-universes
- Planet X and other possible words/civilisations

Also any other similar topic that I haven't covered.

Thanks!

[barx1963]

One I can recommend, strictly not astronomy but it helps to understand a lot is "Why does E=mc2" by Brian Cox and Jeff Forshaw. It is a laymens guide to relativity and very well written and only requires basic maths to comprehend.

Malcolm

[N1]

Brian Greene - The Fabric of the Cosmos
Penguin Books

Reasonably involved for a general layperson but fairly easy to follow for someone with an interest in the subject.

[rrussell1962]

Black Holes and Time Warps by Kip S. Thorne is an interesting read. Not sure if it is still in print though.