The Stardust spacecraft was launched in 1999 and returned its capsule to earth on January 15, 2006. The spacecraft gathered dust and particles from the Wild 2 comet which scientists hope will lead to news about our galaxy.
Americans celebrated the birthday of Dr. Martin Luther King Jr. this week. His birthday was made a national holiday twenty years ago. At the time of this year's observance, family members were in a dispute as to how to best keep his legacy alive.
For the first time, an African nation has elected a female president. Ellen Johnson Sirleaf will serve a six-year term as president of Liberia . In Chile , Michelle Bachelet was also elected as the first female president.