If you like real science fiction then you need to get yourself some Larry Niven.
Laurence van Cott Niven (born April 30, 1938 Los Angeles, California) is a US science fiction author. Perhaps his best-known work is Ringworld (1970), which received Hugo, Locus, Ditmar, and Nebula awards. His work is primarily hard science fiction, using big science concepts and theoretical physics. It also often includes elements of detective fiction and adventure stories. His fantasy includes The Magic Goes Away series, rational fantasy dealing with magic as a non-renewable resource. Niven also writes humorous stories; one series is collected in The Flight of the Horse. - Wikipedia
http://en.wikipedia.org/wiki/Larry_Niven
Bibliography
Known Space
Ringworld
1. Ringworld (1970)
2. The Ringworld Engineers (1980)
* Guide to Larry Niven's Ringworld (1994) (with Kevin Stein)
3. The Ringworld Throne (1996)
4. Ringworld's Children (2004)
Man-Kzin anthologies
1. Man-Kzin Wars (1988)
2. Man-Kzin Wars II (1989)
3. Man-Kzin Wars III (1990)
4. Man-Kzin Wars IV (1991)
5. Man-Kzin Wars V (1992)
6. Man-Kzin Wars VI (1994)
7. Man-Kzin Wars VII (1995)
8. Man Kzin Wars VIII: Choosing Names (1998)
9. Man-Kzin Wars IX (2002)
10. Man-Kzin Wars X: The Wunder War (2003)
11. Man-Kzin Wars XI (2005)
12. Destiny's Forge (2007)
13. Man-Kzin Wars XII (2008) Expected release date.
* World of Ptavvs (1966)
* A Gift From Earth (1968)
* Neutron Star (collection) (1968)
* The Shape of Space (collection) (1969)
* Protector (1973)
* Tales of Known Space: The Universe of Larry Niven (collection) (1975)
* Three Books of Known Space (omnibus) (1989)
* The Long Arm of Gil Hamilton (fix-up novel) (1976)
* The Patchwork Girl (1980)
* World of Ptavvs / A Gift From Earth / Neutron Star (omnibus) (1991)
* Flatlander: The Collected Tales of Gil 'the Arm' Hamilton (omnibus) (1995)
* Fleet of Worlds Larry Niven and Edward M. Lerner (2007)
* Juggler of Worlds Larry Niven and Edward M. Lerner (2008)
With Jerry Pournelle
* Inferno (1976)
* Lucifer's Hammer (1977)
* Oath of Fealty (1982)
* Footfall (1985)
* Moties
1. The Mote in God's Eye (1974)
2. The Gripping Hand aka The Moat Around Murcheson's Eye (1993)
* Golden Road (set in the same fantasy world as The Magic Goes Away)
1. The Burning City (2000)
2. Burning Tower (2005)
* Heorot (with Steven Barnes and Jerry Pournelle)
1. The Legacy of Heorot (1987)
2. Beowulf's Children (1995 UK as The Dragons of Heorot)
3. Destiny's Road (1997) (Written alone by Niven, not really a continuation of the Heorot series. Located in the same universe and some events from the first two novels are briefly mentioned.)
Dream Park (with Steven Barnes)
1. Dream Park (1981)
2. The Barsoom Project (1989)
3. The California Voodoo Game aka The Voodoo Game (1992)
* The Descent of Anansi (1982)
* Achilles' Choice (1991)
* Saturn's Race (2001)
The State
1. A World Out of Time (1976)
2. The Integral Trees (1984)
3. The Smoke Ring (1987)
Magic Goes Away
1. The Magic Goes Away (1978)
2. The Magic May Return (1981)
3. More Magic (1984)
4. The Time of the Warlock (Greendragon Press)(1984)
* The Magic Goes Away Collection (omnibus) (2005)
Graphic novels and comics
* Death By Ecstasy: Illustrated Adaptation of the Larry Niven Novella (1991)
* Green Lantern: Ganthet's Tale (1992, DC Comics, ISBN 1-56389-026-7) (with John Byrne)
* The Magic Goes Away, graphic novel illustrated by Jan Duursema, DC Comics
* "Not Long before the End" was adapted by Doug Moench and Vicente Alcazar, and "All the Myriad Ways" by writer-artist Howard Chaykin, both for Marvel Comics' black-and-white anthology magazine Unknown Worlds of Science Fiction.
Collections
* All the Myriad Ways (1971)
* The Flight of the Horse (1973)
* Inconstant Moon (1973)
* A Hole in Space (1974)
* Convergent Series (1979)
* Niven's Laws (1984)
* Limits (1985)
* N-Space (1990)
* Playgrounds of the Mind (1991)
* Bridging the Galaxies (1993)
* Crashlander (1994)
* Scatterbrain (2003)
* Larry Niven Short Stories Volume 1 (2003)
* Larry Niven Short Stories Volume 2 (2003)
* Larry Niven Short Stories Volume 3 (2003)
* The Draco Tavern (2006)
Novels
* The Flying Sorcerers (with David Gerrold) (1971)
* Berserker Base: A Collaborative Novel (1984) (with Poul Anderson, Edward Bryant, Stephen Donaldson, Fred Saberhagen, Connie Willis and Roger Zelazny)
* Fallen Angels (1991) (with Jerry Pournelle and Michael Flynn)
* Rainbow Mars (1999)
* Building Harlequin's Moon (2005) (with Brenda Cooper)