Humans are all well aware of the risks to the earth from nuclear weapons and pollution, but there exist other external threats to Earth and our solar system. Frank close discusses and evaluates the dangers from meteor showers, comets, rogue planets and the sun as well as the potential problems of "dark matter", the collapse of the universe under its own gravity, and the possible instability of matter itself.
- ISBN10 0140125272
- ISBN13 9780140125276
- Publish Date 26 April 1990
- Publish Status Unknown
- Out of Print 10 January 1992
- Publish Country GB
- Imprint Penguin Books Ltd
- Edition New edition
- Format Paperback (B-Format (198x129 mm))
- Pages 256
- Language English