Graffiti are writing or drawings that have been scribbled, scratched, or painted illicitly on a wall or other surface, often in a public place. Graffiti range from simple written words to elaborate wall paintings, and they have existed since ancient …
Tag: Science
A closer look at distant nebulas
The Helix Nebula is a large planetary nebula located in the constellation Aquarius. This object is one of the closest to the Earth of all the bright planetary nebulae.