Colossal Ring of Galaxies --Largest Object in the Universe Spans 5 Billion Light Years. Gamma-ray bursts (GRBs) are the most luminous events in the universe, releasing as much energy in a few seconds as the Sun does over its 10 billion year lifetime. They are thought to be the result of massive stars collapsing into black holes.
Opiates are narcotics derived from the opium poppy plant. Some of the most well-known opiates include opium, heroin, fentanyl, morphine, codeine, oxycodone and hydrocodone. Opiates in low doses have been included in medicines or have been used in hospitals by those professionally trained to administer them.
The most addictive prescription drugs are those that contain opiates. These opiate-based drugs include widely-used pills such as hydrocodone (Vicodin), codeine, OxyContin and other painkillers. Many people abuse these prescription drugs -taking them for their opiate effects, and not because they were prescribed by a physician.