碰撞中的触角星系，太空中的高动力碰撞，在未来25亿年间银河系与仙女星系如果发生碰撞，也有可能产生此现象。

The colliding Antenna Galaxies, a hyperkinetic smashup in space, may approximate what will happen when the Milky Way and the Andromeda Galaxy collide in about 2.5 billion years.

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Mims解释道，混合动力火箭引擎的确存在，那就是维珍银河飞船1号(Virgin Galactic ' s SpaceShipOne)飞行器，不过在广泛投入使用之前还存在着一些关口未被突破。

Mims explains that hybrid rocket engines do exist, notably in Virgin Galactic's SpaceShipOne spacecraft, but there are several sticking points for widespread adoption.

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疏散星团动力学及形成过程的研究对于恒星动力学理论和银河系恒星形成理论具有重要意义。

Studies of the dynamics and formation process of open clusters are of great significance for stellar dynamics and star formation in the Galaxy.

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