... 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. ... Dust Mountains in the Carina Nebula . ... 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. ... Young suns still lie within dusty NGC 7129, some 3,000 light-years away toward the royal constellation Cepheus. ...