... The planet Mercury has been known since history has been recorded, but parts of the Solar System's innermost planet have never been seen like this before. ... Created quite by accident, the energetic light and winds from these massive newborn stars burn away accumulations of dark dust and cool gas in a slow but persistent manner. ... On September 29, this magnificent eruptive solar prominence lifted away from the Sun's surface, unfurling into space over the course of several hours. ... Planets Ahoy ...