Do know-it-alls really know it all? Plus, discovery of a pentaquark, a dolphin’s view of disease, fighting bacteria with bacteria, and more.

“Geek Atlas” author John Graham-Cumming helps us plot the ultimate geek road trip. Plus, Pluto prepares for its closeup, fluid dynamics and lollipops, Eric Kandel on the role prions play in long-term memories, and more.

Is there a better way to teach and learn math? Plus, how the field of neuroscience emerged, marijuana’s effects on adolescents in the U.S., a look at the Rocky Mountain Arsenal National Wildlife Refuge, and bike traffic laws.

A 40,000-year-old jawbone reveals neanderthal ancestry, a wrap-up of our Cephalopod Week celebration, science hacks for at-home ice cream-making, and more.

Cephalopod Week is back! Plus, paleontologists discuss “Jurassic World,” an ancient climate on Mars, summer science reading picks, and more.

Why did we, modern humans, survive among all hominins? Plus, the wonders of worm spit, a robot challenge, smelly ants, and more.

A look back at our month-long solar celebration. Plus, Alan Alda asks communicators to explain sleep, a possible link between the brain and immune system, beer can chicken myths and summer BBQ science, and more.

A jaw fossil discovery points to a new hominin species. Plus, beefsteak tomato science, an adaptive robot, a conversation with twin astronauts, and more.

A new book unearths the dizzying diversity of seeds. Plus, a plankton update, driving apps, a conversation with science fiction author Neal Stephenson, and more.