The dark star in Nova Muscae 1991 is a black hole rather than a neutron star.

在1991年苍蝇座中的暗星其实是一个黑洞而非中子星。

youdao

Muller and others believe that the dark star probably takes about 26m years to complete an orbit around the sun.

马勒和其他一些人认为，这颗暗星绕太阳运行一周大约要用2600万年的时间。

youdao

A falling star shone in the dark firmament.

一颗流星在黑暗的天空中闪烁。

youdao

The Andromeda Galaxy is big enough and near enough to be seen by the unaided eye in the star group Andromeda on a dark night.

VOA: special.2009.01.20

Since Kepler finds planets by measuring the tiny dips in a star's brightness when a dark planet moves across the face of that star, less accurate photometry means Earth-like planets will be too hard to find.

CNN: Kepler or not, we'll find life in space

Beginning May 15, players around the world will be able to return to Tristram to discover the dark secrets of a fallen star and begin their quest to save Sanctuary from the impending demonic invasion.

FORBES: Diablo 3 Gets a Release Date at Last

The Dark Knight Rises and Looper star Joseph Gordon-Levitt agrees.

BBC: Entertainment & Arts