Daniel and Kelly’s Extraordinary Universe

Can we engineer the sun?

Nov 18, 2025
The hosts delve into the looming threat of the Sun’s demise and its impact on Earth. They explore stellar dynamics like helium accumulation and the potential for our planet to either drift away or be engulfed. Can we engineer Earth's orbit? Star lifting is introduced as a method to extend the Sun's life, along with innovative techniques such as boosting solar wind with mirrors. However, they caution about the risks and ethical implications of such ambitious engineering challenges. A captivating blend of science and speculation!
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INSIGHT

Sun's Balance Drives Its Demise

  • The Sun's steady habitability is temporary because fusion and gravity are in a balancing act that changes as hydrogen becomes helium in the core.
  • This shift makes the Sun hotter and brighter over time, threatening Earth's long-term habitability.
ANECDOTE

Terraforming Mars Sparks Ethical Debate

  • Daniel and Kelly debated terraforming Mars, highlighting scientific value and ethical concerns about altering unique geology.
  • Kelly warned against destructive shortcuts like nuking poles, favoring cautious, well-considered approaches.
ANECDOTE

From Gyms To Golden Gate Wonders

  • Daniel and Kelly joked about spotting celebrities at the gym and the Golden Gate Bridge as human engineering marvels.
  • They used those examples to contrast everyday engineering with cosmic-scale projects.
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