Famous people! They tweet just like us, except that way more folks actually care about what they have to say.In 2013, celebrities dominated the conversation on Twitter. But which ones decided to join the conversation? Prepare to hit "Follow" on these 12 star-powered Twitter accounts.
Some animals’ fur turns from brown to white, others get thicker.
A cave on the northwestern coast of Sumatra holds a remarkable record of big tsunamis in the Indian Ocean stretching back thousands of years.
SAN FRANCISCO (Reuters) - NASA is assessing a problem with one of two cooling systems aboard the International Space Station, a potentially serious but not life-threatening situation, officials said on Wednesday.
A Chinese-Brazilian satellite launched by China on Monday failed to reached its planned orbit and likely fell back to Earth, Brazil's Ministry of Science said. The satellite was the fourth in a series designed to monitor land use in Brazil, including forest cover in the Amazon basin. Brazil's space program is seeking to reduce the country's dependence on U.S. and European space equipment and lau