This week, we discuss how to ensure experimental instruments are truly inert and chemistry's answer to the fate of the Mary Celeste, with Phillip Broadwith and Mason Wakley.

A new study has demonstrated how unexpected results can arise from experiments using seemingly inert materials. How do we avoid the effects of these accidental reagents?

And, scientists may have found the answer behind what happened to the crew of the infamous ship the Mary Celeste. We explain how chemistry may fill the gaps.