Vikki Velasquez is a researcher and writer who has managed, coordinated, and directed various community and nonprofit organizations. She has conducted in-depth research on social and economic issues ...

The bone-chilling Alien franchise stars Sigourney Weaver as Ellen Ripley, a member of the crew aboard a commercial ship heading back to Earth. When an alien spacecraft diverts their journey, they come ...

Thanks to the Human Genome Project, researchers have sequenced all 3.2 billion base pairs in the human genome. How did researchers complete this chromosome map years ahead of schedule? Initial ...