This material gradually coalesced into lumps called planetesimals as gravity and chance smashed smaller pieces together.

随着重力和机会将较小的碎片粉碎在一起，这种物质逐渐聚集成块状，被称为天体。

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The star also has rings similar to Saturn's, and some of the ring material may be from planets and other objects that were torn apart by the White Dwarf's gravity.

这个恒星还有类似于土星的光环，光环的中含有来自行星和其他天体的物质，由于白矮星的引力被击碎。

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Corporate clients might be harder to come by but would probably be drawn from sectors that deal with material sciences, particularly engineering or metallurgy, where a low-gravity environment would make possible types of research and production that are impossible or prohibitively expensive on Earth.

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There's a mixture of excitement and apprehension and sort of the gravity of it and then the--putting the show together and working up new material.

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