Lately, I’ve thought a lot about comets," Esther Pearl Watson says. "The auras they create are spectacular. There is a comet called the 67P/Churyumov-Gerasimenko, which is surrounded by its own nebulous aura or coma—an envelope of gas and dust. In
Lately, I’ve thought a lot about comets," Esther Pearl Watson says. "The auras they create are spectacular. There is a comet called the 67P/Churyumov-Gerasimenko, which is surrounded by its own nebul… [+2075 chars]