Spacewalking astronauts installed an 88-million-dollar spectrograph designed to detect faint light from faraway quasar .

太空漫步宇航员安装8．8千万美元的谱仪，用于探测来自遥远类星体的微。

Quasars are the highly energetic cores of distant galaxies.

类星体是遥远星系的极为活跃的核心体。

The parallactic refraction between the stars and the satellite is small and well determinate, except for the irregular stellar movements known as erratics.

除了通称为游的不规律星体运之外，恒星和卫星之间的视差折差微小，而且是容易测定的。

But slows down then possibly meant senile, or moves towards by other heavenly body receive the self-deconstruction, this then is the universe photostar general evolution history.

而放慢则可能衰老，被其他天体接收或走向自我毁灭，这便是宇宙星体大概的演化史。