April 19, 2018
The articles in this issue of Elements provide a fascinating account of comets and the making of our planetary system. We learn why comets are visible to the naked eye, about their complex organic geochemistry, the surprising find of free O2, and the likelihood of a comet impact on Earth. Articles present concise reviews of what has been learned regarding the mineralogy, geochemistry, and geology of comets from the Giotto, Vega, Stardust, Stardust NEXT, Deep Impact, and Rosetta missions to comets Halley, Wild 2, Borrelly, Tempel 1, and Churyumov–Gerasimenko. Processes that force comets to interact with other Solar System bodies are also discussed.
Current Geochemical Society members can access this issue now via the Elements website using your email address (UserID) and member number (Password).