Cilia-of-Gold (Great Science Fiction Stories)

Irina Larionova had had no intention of visiting Mercury herself. Why would anyone come to Mercury, unless they had to? The planet was a piece of junk, a desolate ball of iron and rock too close to the Sun to be interesting, or remotley habitable. But, within days of landing two exploratory teams on the planet, both had reported anomalies. This story takes place in the author's Xeelee sequence.