Mining robots, moon factories, and self-replicating spacecraft  
Forget flying saucers — if alien probes have visited our solar system, they’re probably in the asteroid belt or quietly building factories on the moon. Shane Hewitt speaks with Alex Ellery, professor of mechanical and aerospace engineering at Carleton University, about how interstellar spacecraft might actually work — and why the moon’s aluminum-rich soil is a bigger prize than Earth itself.

Ellery explains real-world efforts to mine and 3D print with lunar materials, outlines concepts for self-replicating alien probes, and raises a provocative possibility: that aliens could have already left evidence on the moon, and we just haven’t recognized it. A conversation that merges engineering, speculation, and a radical reframing of what alien contact might actually look like.

Could Aliens Have Left Us a Gift on the Moon?
What if first contact already happened — and the evidence is buried beneath the lunar surface? Professor Alex Ellery joins Shane Hewitt to explore the logic behind alien visitation, and why self-replicating machines might be the true currency of intelligent civilizations.

Ellery explains how such probes could use the moon’s minerals to construct infrastructure, how they might bury technology as a gesture of goodwill, and why we may only uncover it once we begin mining. The conversation spans self-replicating machines, universal constructors, and how this futuristic tech could revolutionize both space travel and industry here in Canada. Colonizing the galaxy starts with a shovel on the moon.

GUEST:
Alex Ellery

Originally aired on2025-11-10

Mining robots, moon factories, and self-replicating spacecraft&nbsp; Forget flying saucers &mdash; if alien probes have visited our solar system, they&rsquo;re probably in the asteroid belt or quietly building factories on the moon. Shane Hewitt speaks with Alex Ellery, professor of mechanical and aerospace engineering at Carleton University, about how interstellar spacecraft might actually work &mdash; and why the moon&rsquo;s aluminum-rich soil is a bigger prize than Earth itself.
Ellery explains real-world efforts to mine and 3D print with lunar materials, outlines concepts for self-replicating alien probes, and raises a provocative possibility: that aliens could have already left evidence on the moon, and we just haven&rsquo;t recognized it. A conversation that merges engineering, speculation, and a radical reframing of what alien contact might actually look like.
Could Aliens Have Left Us a Gift on the Moon? What if first contact already happened &mdash; and the evidence is buried beneath the lunar surface? Professor Alex Ellery joins Shane Hewitt to explore the logic behind alien visitation, and why self-replicating machines might be the true currency of intelligent civilizations.
Ellery explains how such probes could use the moon&rsquo;s minerals to construct infrastructure, how they might bury technology as a gesture of goodwill, and why we may only uncover it once we begin mining. The conversation spans self-replicating machines, universal constructors, and how this futuristic tech could revolutionize both space travel and industry here in Canada. Colonizing the galaxy starts with a shovel on the moon.
GUEST: Alex Ellery
Originally aired on 2025-11-10

Shane Hewitt & The Nightshift is your late-night companion for real talk, bold ideas, and unfiltered conversations that matter. Hosted by Canadian radio veteran Shane Hewitt, each episode dives into the headlines, human stories, and hidden truths shaping our world—always with curiosity, compassion, and a sharp edge.

From politics and pop culture to mental health, technology, and everyday life, this podcast is where night owls, deep thinkers, and curious minds come to connect. Featuring expert guests, passionate callers, and Shane’s signature style—thoughtful, fearless, and refreshingly real.

If you crave meaningful dialogue, smart perspectives, and late-night radio energy in podcast form, subscribe now and join The Nightshift.

Shane Hewitt &amp; The Nightshift is your late-night companion for real talk, bold ideas, and unfiltered conversations that matter. Hosted by Canadian radio veteran Shane Hewitt, each episode dives into the headlines, human stories, and hidden truths shaping our world&mdash;always with curiosity, compassion, and a sharp edge.
From politics and pop culture to mental health, technology, and everyday life, this podcast is where night owls, deep thinkers, and curious minds come to connect. Featuring expert guests, passionate callers, and Shane&rsquo;s signature style&mdash;thoughtful, fearless, and refreshingly real.
If you crave meaningful dialogue, smart perspectives, and late-night radio energy in podcast form, subscribe now and join The Nightshift.

Shane Hewitt and The Nightshift

Shane Hewitt is known for his engaging and relatable on-air personality, which captivates listeners. His ability to blend insightful commentary with humour and empathy creates a genuine connection with listeners.  Shane Hewitt and the Night Shift provides relatable content, informative discussions and expert insights – along with a balance of anecdotes and entertainment.

Shane Hewitt is known for his engaging and relatable on-air personality, which captivates listeners. His ability to blend insightful commentary with humour and empathy creates a genuine connection with listeners.  Shane Hewitt and the Night Shift provides relatable content, informative discussions and expert insights – along with a balance of anecdotes and entertainment.