From what it actually takes for a giant ball of gas to ignite into a true star to the hidden medical hazards astronauts face in zero gravity, the cosmos is full of incredible surprises. 

David Reneke joins Brent for a wild ride through the universe. We explore the physics of nuclear fusion, look at why our nearest stellar neighbor, Alpha Centauri, isn't quite a holiday destination yet, and unpack the sneaky medical condition known as Spaceflight-Associated Neuro-ocular Syndrome (SANS) that threatens astronauts' eyesight.


What Makes a Star a Star?: Unpacking the heavy mass threshold and extreme pressures required to spark nuclear fusion, and why objects like brown dwarfs remain "failed stars."


Alpha Centauri & Proxima b: Examining the distance problem, brutal stellar radiation, and why traveling 4.24 light-years keeps interstellar travel firmly in the realm of sci-fi.


The Hidden Hazard of Space (SANS): How upward fluid shifts in microgravity flatten eyeballs and blur vision, and how space agencies are repurposing portable eye-exam tools built for seniors on Earth to keep astronauts safe.

If you want a mind-expanding journey through space science, make sure you check out David Reneke's Website for all his latest astrophotography and updates.

From what it actually takes for a giant ball of gas to ignite into a true star to the hidden medical hazards astronauts face in zero gravity, the cosmos is full of incredible surprises.&nbsp;
David Reneke joins Brent for a wild ride through the universe. We explore the physics of nuclear fusion, look at why our nearest stellar neighbor, Alpha Centauri, isn't quite a holiday destination yet, and unpack the sneaky medical condition known as Spaceflight-Associated Neuro-ocular Syndrome (SANS) that threatens astronauts' eyesight.
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What Makes a Star a Star?: Unpacking the heavy mass threshold and extreme pressures required to spark nuclear fusion, and why objects like brown dwarfs remain "failed stars."
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Alpha Centauri &amp; Proxima b: Examining the distance problem, brutal stellar radiation, and why traveling 4.24 light-years keeps interstellar travel firmly in the realm of sci-fi.
</li>
<li>
The Hidden Hazard of Space (SANS): How upward fluid shifts in microgravity flatten eyeballs and blur vision, and how space agencies are repurposing portable eye-exam tools built for seniors on Earth to keep astronauts safe.
</li>
</ul>
If you want a mind-expanding journey through space science, make sure you check out <a href="https://www.davidreneke.com/" data-hveid="0" data-ved="0CAAQ_4QMahgKEwi2-L7ivKaWAxUAAAAAHQAAAAAQoAE">David Reneke's Website</a> for all his latest astrophotography and updates.

Join Brent Bultitude every weekend for lively chats with industry insiders and special guests! Covering the latest trends and exciting topics, it's your go-to for fresh insights and fun conversations.

Tune in for your weekend fix of thought-provoking conversation!

Join&nbsp;Brent Bultitude&nbsp;every weekend for lively chats with industry insiders and special guests! Covering the latest trends and exciting topics, it's your go-to for fresh insights and fun conversations.
Tune in for your weekend fix of thought-provoking conversation!

Afternoons with Brent Bultitude

Brent’s Business background and personality are fundamental to asking the right people the right questions with interviews, the latest news, quizzes, music and your calls on 13 12 69.

Plus Brent interviews many more people that are going to tell us what’s going from stories in the news to the things you care about.

Brent&rsquo;s Business background and personality are fundamental to asking the right people the right questions with interviews, the latest news, quizzes, music and your calls on 13 12 69. Plus Brent interviews many more people that are going to tell us what&rsquo;s going from stories in the news to the things you care about.