WISE needs to scan the sky twice in order to generate the time-lapsed images astronomers use to detect objects in the outer solar system.
广角红外线探测望远镜需要扫描天域2遍以便生成时间释放图像，天文学家将用这些图像侦测外太阳系的天体。
2
This video dress displayed a time-lapsed image of a rose opening up and closing, with an array of colours and light, made possible by 15, 000 LEDs embedded in the fabric.