Material World

Quentin Cooper presents his weekly digest of science in and behind the headlines. He finds out about the oldest galaxy ever seen, estimated to have existed 480 million years after the big bang. Roland Pease travels to Trinity College Dublin to a new exhibition which marries biomedical science with art. Quentin answers your emails including what bedbugs smell like. Also, why chemical engineering is an increasingly popular subject to study at University. Producer: Ania Lichtarowicz.