The Disturbance: Hard Science Fiction

The Hole: Hard Science Fiction

The Rift: Hard Science Fiction (Solar System Series)

The Eighth Continent: A Hard Science Fiction Thriller

The Torn Planet: Hard Science Fiction (The Marchenko Logfiles)

Into The Light: Hard Science Fiction (Proxima Logfiles)

Into The Darkness: Hard Science Fiction (Proxima Logfiles)

The Disturbance 2: The Answer: Hard Science Fiction

Amphitrite 2: The Black Planet: Hard Science Fiction (Planet Nine)

The Year's Top Hard Science Fiction Stories 5

The Year's Top Hard Science Fiction Stories

The Triton Disaster: Hard Science Fiction (Solar System Series)

The Bastion Of God: Hard Science Fiction (The Dark Cloud)

The Year's Top Hard Science Fiction Stories

The Pluto Debacle: Hard Science Fiction (Solar System Series)

The Beacon: Hard Science Fiction (Solar System Series)

The Year's Top Hard Science Fiction Stories 4

The Torn Planet: Hard Science Fiction (The Marchenko Logfiles Book 1)

The Luna Monolith: Hard Science Fiction (The Black Monolith)

The Disturbance 3: The Truth: Hard Science Fiction

The Disturbance 2: The Answer: Hard Science Fiction

The Hole: Hard Science Fiction (Solar System Series Book 1)

Proxima Dreaming: Hard Science Fiction (Proxima Trilogy)

The Luna Monolith 3: Hard Science Fiction (The Black Monolith)

Amphitrite: The Black Planet: Hard Science Fiction (Planet Nine Book 1)

The Time Ships: An Epic Hard Science Fiction Sequel To The Time Machine - Quantum Physics Alters Reality

Andromeda: The Sojourn: Hard Science Fiction (The Long Journey)

Exemplar: Hard Science Fiction: The Autonomous Sequence (Book 1)

The Best Of Greg eGaN: 20 Stories Of Hard Science Fiction

The Jupiter Catastrophe: Hard Science Fiction (Ice Moon Book 5)

The Luna Monolith 2: Hard Science Fiction (The Black Monolith)

Proxima Dying: Hard Science Fiction (Proxima Trilogy)