The past few months have been full of Alzheimer's optimism: new ideas that could prevent the disease from taking hold, medications that seem to slow it down, and an experimental surgery that might even be able to reverse its progression. It's a lot of hype. Should we believe it? ...Show more
Talking with the dead
“If only I could talk with them again.” It’s a common refrain for anyone who is grieving someone they love. Now, we can access technology like deadbots, or AI replicas of a lost loved one, to simulate those conversations, but at what cost? Maybe we’ve always had the capacity — wi ...Show more
Everyone knows about the Big Bang being the beginning of the universe and time - but when and how is it going to end? ask brothers Raffie and Xe from Rome. For this series, with lockdown learning in mind, Drs Rutherford and Fry are investigating scientific mysteries for students ...Show more
How big is the universe? And how do we know? It's a question that puzzled astronomers for centuries. They had no way to measure distance in space - until Henrietta Leavitt showed them how. Henrietta Leavitt was a "computer" in the 19th century, before there were computers, and sh ...Show more
A century ago, astronomers were locked in a debate about the scope of our universe. Were we it? The answer is no. There are other galaxies beyond the Milky Way, and they are speeding away from us. Answering that question left astronomers with an even bigger puzzle. Why is everyth ...Show more
What do scientists think is outside our universe? Asks Rebecca Standridge from San Francisco in the US. It’s a question which goes right to the limits of human understanding.We look for the answer using balloons, bubbles and the world’s oldest radio telescope.If you have a questi ...Show more