John Karpiscak | Rymdhäst

Horse Tales from the Moon

Available on Amazon NOW . The latest in the Equis Astra series!

“A Horse on the Moon didn’t tell the whole story. .

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Previously released. Hard Sci‑Fi . . . with Hooves.

John Karpiscak writes about the near future in speculative hard science fiction where math matters, orbital mechanics bite, and “out-of-the-box solutions” succeed where high-tech falls short.

About John

Books & Series

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Equis Astra and other Hard science fiction books (what I write about)

Explore rigorously researched spacefaring epics grounded in real physics.

Amazon links

Novels, novelettes, and collections set across our plausible future. Each title includes direct Amazon purchase and Kindle Unlimited options

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Author‑goodies

More on things that interest and inspire me to write.

A dimly lit asteroid mining outpost carved into the side of a large, irregular rock, with exposed support struts and anchored processing modules clinging to the regolith. A conveyor system feeds fragmented ore toward a compact refinery whose vents emit a faint, silvery vapor that disperses into space. In the background, a dense asteroid belt stretches into the distance, each rock sharply rendered against the black void. Directional floodlights mounted along the facility cast hard-edged beams, creating pools of illumination and deep pockets of darkness. Photographic realism, framed from a low, off-axis angle to emphasize the precariousness of the installation. The overall mood is gritty, industrial, and highly believable, supporting the hard sci‑fi theme of resource extraction in deep space.

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Preview chapters

Coming soon. Read sample chapters before committing to a full deep‑space journey.

Coming Soon . . .

News on releases, world‑building notes, and science dives.

Praise

Lena Ortiz

Physics‑driven storytelling that never forgets the human cost of leaving Earth behind.

— Aya Nakamura

Delta Reader

Every orbital transfer and engine burn feels calculated, dangerous, and utterly believable.

— Mateo García

Orbital Review

For readers who crave rigor with their wonder, these books redefine space adventure.

— Lila Patel

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Rymdhäst Publications, Online

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Replies within two orbits

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