Dimitar Sasselov

The question we ask is - if there is life on other planets, should we expect it to be based on the same molecules, i.e. be universal - or should we expect it to depend on the local conditions, i.e. on the planet's geochemistry. So to find out, we try experiments on biomolecules, starting with such geochemistry conditions.

Though builders may build, in the main they follow the plans of architects. Teachers teach, but they must have a text. Politicians govern, but only upon the flow of commentary that raises them up or casts them down.

The astronomer will believe that the most erratic comet will yet accomplish its journey and revisit our sphere; but we give up those for lost who have not wandered one-half the distance from the centre of light and life.