This episode is brought to you by Slack. With Slack, you can bring all your people and

tools together in one place. It's your digital HQ where you can increase productivity,

enable flexibility and automate workflows. Plus, Slack is full of game-changing features

like huddles for quick check-ins or Slack Connect, which helps you connect with partners

inside and outside of your company. Slack, where the future works. Get started at

Slack.com slash DHQ. VolitionRx, a multinational epigenetics company revolutionizing cancer

diagnosis with the development of simple, easy to use, cost-effective blood tests involving

a range of cancers and other diseases. Volition's clinical trials and human health have shown

promising results in detecting several cancer types, including colorectal, lung and a variety

of bloodborne cancers. VolitionRx, web address volition.com. The preceding may contain full-looking

statements which may not be realized.

This is CBS, I'm John Baxter. Hope to tell Mars, episode N, David Livingston, Dr. Space

of the Space Show is here. And we're traveling 12,000 years before present to Chile, to the

high desert of Chile, called the Afacomite Desert. And our guide is Professor Peter Schultz,

speech-shultz, Professor Emeritus, Brown University's Department of Earth, Environmental and Planetary

Sciences. The professor assures me there is very like the good likelihood that human beings

have settled in this area 12,000 years before right now, along with other megafauna. And

then one day, Professor, a very good evening to you. Your presentation is as exciting as

the passing of the dinosaurs. What is it that you're presenting in geology magazine that

is very likely to have been an event that left very few signs except yours 12,000 years

ago and this moment in Chile, good evening to you, Professor.

Good evening. Nice to be here. And the event, can you describe that moment, Professor,

...