Gum Resin, a natural mixture of gum and resin that is obtained from the leaves and bark of certain plants. Gum resin does not dissolve in water and usually has a strong smell and taste. The resins and oils in a gum resin are more useful than the gum. The oils impart a distinctive odor, and often a color, to other materials. Important gum resins are gum ammoniac, asafetida, frankincense, gamboge, and myrrh. These substances have a variety of uses in medicine and pharmacy and in the manufacture of perfume.
When a star dies, it becomes a black hole. Once something passes through the it's gone for good, never to be seen or heard from again. If we lived next to a black hole, would it suck us in too?
Every November, the Leonid meteor shower fills the sky with "shooting stars." This year, the shower is expected to peak twice. Learn how Leonid and other meteor showers work.