Bille and his team work with an optical instrument called an active mirror -- a device used in astronomical telescopes to spot newly emerging stars and far distant galaxies.

• 比尔和他的科研小组使用一种被称之为灵敏镜的光学仪器--一种用在天文望远镜上观测新出现的星体以及极为遥远的星系的装置。