Episodes

We’ve got some soil science to help your garden spring into shape. Plus, an update on the effort to bring more science to the forensics used in criminal investigations.

Homo naledi, an ancient hominin species, may have roamed Africa with early humans. Plus, 50 years after consumer microwaves, why do they make so many people nervous?

When the sky goes dark during the solar eclipse, what will scientists be observing about our nearest star? Plus, the little sea creature that builds a big house—made of mucus.

A fossil find in California makes the case for human settlement of the Americas 130,000 years ago—much earlier than previously believed.

We explore the core issues underpinning this Saturday’s March for Science. And a look at how forensic ornithologists determine which bird species pose a threat to planes.

NASA has discovered a possible new home for life in the solar system. Plus, an unexpected 14,000 year-old archaeological discovery.

How does NASA design sturdy rover wheels for Mars? Plus, the challenges of listening to the stars despite Earth’s electronic noise.

Meet the robots that may someday mine the moon. Plus, a geologist searches for signs of life in rocks formed by asteroid impacts.

A look at wildflower sightings across the nation. And seven years after the BP spill in the Gulf of Mexico, how well has the Gulf recovered?

New weather satellites promise improved forecasting, but what happens if they break in orbit? Scientists hope to send robot repairmen to the rescue. Plus, a mathematical perspective on the beauty of vibrato.