Weather delays raising of WTC spire

CBSnews.com: When the last pieces of its spire eventually rise to the roof, the 104-floor skyscraper that replaces the fallen twin towers will be just feet from becoming the highest in the Western Hemisphere.

Space trash keeps piling up

BBC: The 6th European Conference on Space Debris has concluded that  Earth’s space environment is on the verge of hazardous collisions from all the debris left over from human exploration and satellite launches.

New bird flu strain considered most lethal

Reuters: A new bird flu strain that has killed 22 people in China is “one of the most lethal” of its kind and transmits more easily to humans than another strain that has killed hundreds since 2003, a World Health Organization (WHO) expert said.