Staff writer Karen Rowans, of www.space.com, has written her comments on Stephen Hawking's statement which warned us away from searching for extraterrestrial life.
Could Extraterrestrials Really Invade Earth, and How?, addresses the possibility and means of the Earth being invaded by a hostile extraterrestrial race of beings.
The vast distances in space, the strain on the body, and economical concerns would prohibit such an invastion, according to Seth Shostak, who is quoted as saying, "It's not like, the hatch will open and we'll see a strange, alien paw coming out, it's more likely to be a robotic arm."
Do you worry about us being invaded? Check out the article, and tell us what you think.