A bit of mould is a pleiad of flowers;a nebula is an ant-hill of stars.

一粒霉菌是一簇美不胜收的花朵，一撮星云是无数的蚁聚。

As a coelostat, MA tracks the motion of celestial objects observed at their meridian passages.

MA作为定镜跟踪的运动，望远镜在前后进行观测。

Bright ejecta rays such as these are produced as impacts excavate and eject relatively unweathered subsurface material.

这些放射状陨石坑产生撞击溅出的地下物质，绵延在遍布陨石坑的星表面数百公里。

As described above, the collapse of a rotating cloud of gas and dust leads to the formation of an accretion disk through which matter is channeled onto a central protostar.

部分的重力能量在崩溃的过程会以红外线的形式损失掉，其馀的则会用核心的温度。

If the incoming projectile were a white dwarf—a superdense star that packs the mass of the sun into a body a hundredth the size—the residents of Earth would be treated to quite a fireworks show.

如果接近的是一颗白矮星（whitedwarfstar，一种超密恒星，质量约等同太阳，但其积却不到太阳的百万分之一），那麽地球上的居民将可以看到一场壮丽的烟火秀。