On January 1, 1927, Friedrich Hund identified quantum tunneling, a discovery vital to astrophysics. In this footage, Greg Foot explains how subatomic particles defy classical logic to power the cosmos. Within the solar core, protons are forced together under extreme pressure. Classical mechanics suggests they should repel, but tunneling allows them to bypass the electrostatic barrier, enabling fusion at 15 million°C. This interaction is the reason the Sun shines and life on Earth exists.

You cannot just point a rocket at Mars and go. Elon just dropped the ultimate masterclass on why getting to the Red Planet is a high stakes game of cosmic timing. We are talking about an elliptical dance that only allows a transit window every 26 months because of how the orbits align. The distance traveled on that arc is thousands of times further than the trip to the Moon. It is humbling to realize that the same Starlink internet powering your home is helping fund this journey to make humanity

Cosmos: A Spacetime Odyssey (2014) | WatchDocumentaries.com

The Fabric of the Cosmos

Cosmos: Possible Worlds (2020) | WatchDocumentaries.com