Don't want to have a lengthy conversation with someone who wants to know what your sign is? Boy do I have the shirt for you. Wear this shirt out to let strangers know that you are the laid back Sagittarius!
Tags: astrological-signs, birthdays, horoscope-signs, birth-signs, zodiac-symbols
Sagittarius A* is believed to be a supermassive black hole at the center of the milky way galaxy. The event horizon is the area around a black hole in which the force of gravity is so strong that electromagnetic radiation cannot escape.
Tags: nerd, geek, science, space, chemistry