The stream is so thin, however, that scientists believe that even with seven months of exposure, Stardust probably captured only a few dozen grains of interstellar dust.

• 尘埃流实在太稀薄了，以至于科学家们认为即使在暴露其中的这7个月时间里，星尘号可能仅仅捕获了几十个星际尘埃的颗粒。