[Toddsterpatriot]

Poul Anderson's novel Tau Zero, Larry Niven in his Known Space series of books,

This is where you can read some great sci-fi.

[cloudmountain]

Poul Anderson has always been a favorite of mine. I don't read scifi any more.

I read Georgette Heyer (Regency romances--only Heyer) and Ellis Peter, murder mysteries where the "hero" is a 12th century Benedictine monk, a former soldier of fortune and Crusader, who solves the murders by his knowledge of plants, poisons, etc.
Those are all I read now. But, thanks!