Sentence:  Zodiacal light and the <WSD>gegenschein</WSD> give some evidence for such a dust blanket , a phenomenon also to be expected if the dust before capture is in circular orbits about the sun , as indicated by the trend of the smaller visible meteors . 
Meaning of the word marked with <WSD> tags:  a faint spot of light in the night sky that appears directly opposite the position of the sun; a reflection of sunlight by micrometeoric material in space