Why the simplest explanations are not always the best when it comes to science. Where you read about a scientific subject can affect not just what you learn but also how much you think you know about the subject.

Quahogs are a kind of clam and they can live for hundreds of years. Analysis of their shells provides a record of historical climate change. Researchers studying their shells have found big differences between the drivers of climate change now and in the pre-industrial era.

Trips to the dentist may become less frequent if an experimental treatment with stem cells becomes widespread. The treatment involves regrowing damaged dentine, bringing about a natural tooth repair.

Radio telescopes have brought us signals from the far reaches of the known universe and listened in on the space race. Now a new generation will take us further than ever before.

Producer Julian Siddle.