Extraterrestrial life: Searching for the right definition


UFO
|

Flying saucers, little green men, alien abductions: They are the fabric of science fiction and the mysteries surrounding the cosmos. But does the notion of extraterrestrial existence go far enough beyond those story lines? Have we defined it properly?

In the latest episode of ASU Now’s Thought Huddle podcast series, host Mary-Charlotte Domandi talks to Paul Davies, a theoretical physicist, cosmologist and astrobiologist. He is an ASU Regents Professor, director of the Beyond Center for Fundamental Concepts in Science, co-director of the Cosmology Initiative at ASU and author of several books, including “The Eerie Silence: Renewing Our Search for Alien Intelligence.”

While some planets have conditions theoretically suitable for life, Davies explains that we have no idea how to estimate the odds of life arising from such matter.

“It’s just wishful thinking to say that just because there are billions of Earth-like planets in our galaxy there will be billions of planets with life on it. We just don’t know what that number is because we don’t know the process that turned nonlife into life.”

The SETI Institute in California has been searching for extraterrestrial life for half a century. In all that time, witnesses (often credible professionals) have come forward with considerably credible UFO sightings.

Thought Huddle guest Leslie Kean, an investigative journalist and author of the book, “UFOs: Generals, Pilots and Government Officials Go on the Record,” identifies credible UFO cases as events that involve multiple witnesses and photographs or videos, much like the Phoenix Lights on March 13, 1997. Kean points out that the mysterious objects — seen in Arizona, Nevada and the Mexican state of Sonora — were described consistently by hundreds of people and widely documented.

Then what of UFOs and aliens? What’s the relationship, and who or what is really piloting these aircraft?

“That is what fascinates me the most about the phenomenon is the fact that in most cases they demonstrate what military people call intelligent control,” Kean said. “They’re responsive. They sort of interact. And that to me is the most mysterious question of all of it.”

Find more episodes at thoughthuddle.com. Next episode coming soon: Mapping.

More Science and technology

 

A person holding a small red heart-shaped plush object.

Being kind to oneself protects parents from depression

Burning dinner. Shrinking your child’s favorite T-shirt in the laundry. Losing your temper and snapping at your child.The aftermath of these types of mistakes can be stressful, and how parents…

An Taiwanese man with short dark hair wearing classes and a suit holds a microphone, talking with an older white man in a suit who is gesturing with his left hand

ASU a key partner in US-Taiwan technology relationship

In 2016, the Taiwan Semiconductor Manufacturing Co., or TSMC, was scouting cities in the United States that could potentially serve as the home of its $165 billion semiconductor manufacturing complex…

A band of geladas grazes in the Simien Mountains National Park, Ethiopia. Photo by Elizabeth Tinsley Johnson, assistant professor at Michigan State University.

It’s complicated: New research reveals more about the social networks of baboons and African monkeys

Like people, nonhuman primates live in groups that vary in their size and shape depending on the species. Some primate groups are small and simple, others are large and more layered.Over the decades…