As Cassini passed close by the limb (edge) of the Sun on 24 July, communications became impossible because of the Sun's radio noise. The spacecraft regained full communication with Earth on 27 July, once again returning Saturn science data. In the meantime, Cassini radio scientists are taking advantage of this opportunity to study the Sun's corona from its effects on the radio signals that reach Earth. This is a joint co-ordinated observation involving two SOHO instruments (UVCS and LASCO), plus Cassini and some ground-based radio sites.