Ep 2. Asteroid Armageddon

In the second episode of season one of How the Earth Works, titled "Asteroid Armageddon," the focus is on the devastating potential impact an asteroid collision could have on the planet. This episode delves into the science of asteroids, their size and composition, and examines the likelihood of one colliding with Earth.

The episode begins with a look at the Barringer Crater in Arizona, which was created by a small asteroid impact approximately 50,000 years ago. Scientists study this crater to better understand the power and destruction that an asteroid impact can cause.

Astronomers have discovered thousands of asteroids that could potentially collide with Earth, and the episode profiles the work that is being done to track and monitor these potential threats. The show reveals how astronomers determine the trajectory and potential impact zone of these asteroids, and how they are working to develop technologies that could deflect asteroids away from Earth.

One of the experts interviewed for this episode is NASA scientist Dr. Donald Yeomans, who explains how the threat of an asteroid impact is taken seriously by leading space agencies. Yeomans discusses his work with NASA's Near-Earth Object (NEO) program, which has been tasked with identifying and tracking potentially hazardous asteroids.

In addition to discussing the potential threat of a catastrophic asteroid collision, the episode also focuses on how asteroid impacts have shaped Earth's history. One of the most well-known asteroid impacts occurred approximately 65 million years ago, causing the extinction of the dinosaurs. The episode examines how this event changed the course of evolution on the planet.

The show also discusses the potential economic impact of an asteroid impact. While the potential loss of life is the most significant concern, an asteroid impact could also cause widespread damage to infrastructure and property. The episode examines potential scenarios for recovering from such an impact.

Ultimately, the episode provides a comprehensive overview of the science of asteroids and the potential dangers they pose to the planet. Through interviews with leading scientists and experts, viewers gain a greater understanding of the threat of an asteroid impact and the measures being taken to protect the planet.