View full size image. New measurements of Neptune's atmosphere by a European space telescope suggest that a comet may have crashed into the gas giant about 200 years ago.
Beer brewed after a 13th-century recipe using gruit herbs. Gruit (alternately grut or gruyt) is an old-fashioned herb mixture used for bittering and flavoring beer, popular before the extensive use of hops. Gruit or grut ale may also refer to the beverage produced using gruit. Gruit was a combination of herbs, commonly including sweet gale (Myrica gale), mugwort (Artemisia vulgaris), yarrow (Achillea millefolium), ground ivy (Glechoma hederacea), horehound (Marrubium vulgare), and heather (Calluna vulgaris).
Root beer is a beverage originally made from the root/bark of the sassafras tree, and the compound safrole is what gave it it's distinctive flavor. Safrole is banned in the US and the EU as a potential carcinogen, so companies have turned to using safrole extracts and artificial flavors that resemble it.