Mystery molecules of deepest space: Observers are scrutinising interstellar space on the trail of the lonely molecules that lurk there. Karen Schmidt reportsFeatures
Proofreaders for the code of life: When genes become garbled there are two safe options - repair or die. The alternative, reports Karen Schmidt, is cancerFeatures
Meet genetics' master chefs: All cells contain the same genetic information. So what makes a hair cell hairy or a bone cell bony?Features
Too much of a good thing?: American scientists are questioning the policy of addding iron to food. Their research suggests that too much of the element may lead to cancer. Karen Schmidt reportsNews