Astronaut Chris Ferguson, the last commander of a space shuttle mission, has announced his plans to retire from NASA on Dec. 9. He will leave for a new job in the private sector.

HOUSTON, Dec. 5, 2011 /PRNewswire-USNewswire/ -- Astronaut Chris Ferguson, the last commander of a space shuttle mission, has announced his plans to retire from NASA on Dec. 9.

Directly advertising food items to children worries many parents and health care providers, and the American Academy of Pediatrics and the American Psychological Association have expressed concern about the negative impact of advertising on children's healthy food choices.

Space Shuttle Atlantis (STS-135) made its final landing back on Earth at NASA’s Kennedy Space Center at 5:57 am EDT, ending an era that saw the launches of 135 space shuttles in the past 30 years.

How depressed young people are strongly predicts how aggressive and violent they may be or may become.