Today the government announced a plan to rid England of bovine TB within 25 years. Adam Rutherford looks back at how this issue has evolved and the extent to which scientific evidence has informed the eradication strategies, from culling badgers to vaccination programs.

Pharmacognosy is the study of medicines found in nature. Reporter Gaia Vince travels to the seaside to find out how corals could save us from sunburn in summers to come.

There are an estimated 23,000 pieces of space junk around the size of a tennis ball floating above us.