Chris Hadfield

The Apollo Murders #1: The Apollo Murders

The Apollo Murders #2: The Defector

Joe Haldeman

The Forever War #1: The Forever War

Edmond Hamilton

What’s It Like Out There? & Other Stories

Chronicles of the Star Kings

Starwolf

Peter F. Hamilton

Fallen Dragon

Great North Road

Nights Dawn #1: The Reality Dysfunction

Nights Dawn #2: The Neutronium Alchemist

Nights Dawn #3: The Naked God

The Commonwealth Saga #1: Pandora’s Star

Peter F. Hamilton & Gareth L. Powell

Light Chaser

Essa Hansen

The Graven #1: Nophek Gloss

Hao Jingfang

Vagabonds

Charles L. Harness

The Paradox Men

Harry Harrison

The Stainless Steel Rat #4: The Stainless Steel Rat Wants You

Robert A. Heinlein

The Moon is a Harsh Mistress

Starship Troopers

Double Star

The Cat Who Walks Through Walls

Frank Herbert

Destination: Void

Dune Saga

Douglas Hill

Del Curb, Cosmic Vourier #1: The Fraxilly Fracas

James P. Hogan

Giants #5: Mission to Minerva

Stark Holborn

Factus #1: Ten Low