Having a baby is a life-changer. It gives you a whole other perspective on why you wake up every day.
A permanent base on Mars would have a number of advantages beyond being a bonanza for planetary science and geology. If, as some evidence suggests, exotic micro-organisms have arisen independently of terrestrial life, studying them could revolutionise biology, medicine and biotechnology.
The other day at a drive-through, I reminded the teenage girl serving me that she forgot my drinks. She looked at me, hissed, rolled her eyes, and then took her sweet time getting me the sodas.

