The Secret of Dark Energy with Jeff Silverman

A special “tickle attack” Mailbag edition of Tumble! We’re tackling your questions about whether animals can be tickled, and why we laugh when we’re tickled. David Leavens, a professor of psychology, helps us break down the not-so-silly science of tickling. Plus, a brand NEW SONG ...  Show more

Do trees think? That’s what our listener Alden wants to know. He has an idea that scientists might study mushroom roots to find out if trees are sending messages. Is that true? And if so, what do trees have to say?!We travel deep into the forest with a young soil scientist named ...  Show more

This week on The Naked Scientists, we are looking at attempts to map the dark universe. As the new space telescope Euclid seeks to unlock the mysteries of dark matter and dark energy, we ask why their secrets have eluded us for so long... Like this podcast? Please help us by supp ...  Show more

Most of the matter in the universe is dark matter, an invisible, untouchable, mysterious substance. Scientists don’t know what exactly dark matter is, despite decades of searching. But recently, they got a new clue in the form of an extremely tiny dancer. This episode is a remix ...  Show more

While Fred and Andrew head off on an end of year break....we dip back into our recent past and bring you one of our 'all-questions' episodes for a repeat run, just in case you missed it the first time or simply need a refresh.

Are you ready to have your understanding o ...  Show more

Melvyn Bragg and guests discuss 'dark energy'. Only 5% of our universe is composed of visible matter, stars, planets and people; something called 'dark matter' makes up about 25% and an enormous 70% of the universe is pervaded with the mysteriously named 'dark energy'. It is a re ...  Show more