Biology has always been an unruly science. Cells divide when they want to. Genes switch on and off like temperamental lights.

Ultimately, Mars will test our biology more than our technology. Every gram of muscle preserved, every synapse protected, every cell repaired will be a triumph of physiology. Space may dismantle the ...

Genotoxic drugs, the focus of this new study, are commonly used to treat bowel cancer by killing cancer cells through damage ...