Ailanthus altissima, commonly known as tree of heaven, ailanthus, or in Standard Chinese as chouchun (Chinese: 臭椿; pinyin: chòuchūn; literally: “foul smelling tree”), is a deciduous tree in the Simaroubaceae family. It is native to both northeast and central China, as well as Taiwan and subject matter of the best-selling American novel A Tree Grows in Brooklyn by Betty Smith. video & podcast are here
TRAPPIST-1, also designated as 2MASS J23062928-0502285, is an ultra-cool dwarf star located 39.5 light-years (12.1 parsecs) from the Sun…Also A light-year is a unit of length used to express…
