Unearth

The question is no longer if, but when. Scientists are searching for life beyond Earth-from Mars and Titan to the icy moons of the outer solar system. With new missions and powerful telescopes scanning distant exoplanets, the hunt is accelerating. If we discover life beyond our planet, what might it look like?

Earth has endured several mass extinctions that reshaped life on the planet. Now many scientists believe a new one may be underway, driven by climate change and human activity. This episode explores past extinctions and examines the evidence that a new global crisis could threaten the future of countless species-including our own.

Artificial intelligence has long been feared in popular culture, but its real impact is unfolding now. As AI and robotics rapidly advance, they are reshaping science, industry, and daily life. Could machines one day approach consciousness-and how do we ensure this powerful technology develops responsibly?

A new enemy is emerging in the microscopic world: antibiotic-resistant superbugs. As bacteria evolve beyond modern medicines, scientists race to find new ways to fight them. From breakthrough therapies to viruses that attack bacteria, the battle against superbugs could define the future of global health.

Modern civilization depends on energy, but fossil fuels have accelerated climate change. Could advanced nuclear power offer a solution? This episode explores a new generation of safer reactors and how nuclear energy could help reduce emissions while meeting the world's growing demand for power.

Amber, fossilized tree resin, preserves ancient life in extraordinary detail. Scientists examine a remarkable discovery-a mammal tail preserved for over 100 million years-offering a rare window into prehistoric forests and the creatures that once lived among the dinosaurs.