Most of the universe is invisible dark matter, if our theories are correct. So why is it so hard to find? Plus, a look at the natural history treasures hiding in museum collections.

There are more scientists running in this year’s midterm elections. What can they bring to Congress? Plus, deep sea researchers unveil an entire other world on our own planet.

A sleep specialist talks about the science of getting a good night’s sleep. Plus how will roboticists build trust and mutual understanding?

We may be far from building human-like AI, but the TV series ‘Westworld’ gives us a glimpse of what it might look like. Plus, Michael Pollan tells us the story of how psychedelic drugs can help health and the brain.

For the quantum theory of gravity to work, physicist Carlo Rovelli says our ideas about time have to change. Plus, we look at the science behind Hawaii’s recent earthquake and volcanic eruption.

Before New Horizons set sight on Pluto, the mission team endured a decade-long journey to get the probe off the ground. Plus, what are our canine best friends really thinking about?

We discuss the the not-so-brief history of Earth’s weather and climate change. Plus, join a citizen science project and help astronomers weigh galaxies!

Seismologist Lucy Jones catalogues devastating earthquake and tsunamis throughout history, and what happened in the aftermath. Plus, how evolutionary adaptation have let humans live comfortably in some of the world’s extreme places.

Is it ethical to send messages to hypothetical alien beings—or is it an endangerment to the planet? Plus, a look at unconventional bird calls.

We celebrate the 50th anniversary of Stanley Kubrick’s science fiction masterpiece “2001.” Plus, we’ll finally answer the age-long question: does that animal fart?