... This unusual volcanic light pillar was captured over Iceland earlier this month. Earth at Equinox . ... Earth is at equinox. ... Potentially Habitable Moons . ... Cocoon Nebula Wide Field . ... The featured panorama is a 12-image mosaic taken last month from the Salar de Atacama salt flat in northern Chile. ... Crossing the inner Solar System for ten years to reach the vicinity of the comet last month, the robotic spacecraft continues to image the unusual double-lobed comet nucleus. ...