US urges focus on clean-up, sea damage after BP spill

US officials on Sunday urged further study of the damage done to the environment by BP's broken well, and said clean-up efforts must continue despite claims that much of the oil had vanished from the Gulf of Mexico.

Researchers demonstrate highly directional Terahertz laser rays

A collaborative team of applied scientists from Harvard University and the University of Leeds have demonstrated a new terahertz (THz) semiconductor laser that emits beams with a much smaller divergence than conventional ...

Swisscom meets just 10 pct of iPhone 4 demand

Top Swiss telecoms operator Swisscom has only met 10 percent of demand for the Apple iPhone 4 since its troubled global launch, company chief Carsten Schloter said in a newspaper interview published on Sunday.

3rd spacewalk needed to restore cooling system

(AP) -- A pair of space station astronauts had to hammer loose a stuck connector during an urgent spacewalk to restore a crucial cooling system Saturday, then an ammonia leak erupted and hampered the entire repair effort.

Ruptured Mich. oil pipeline shows lengthwise rip

(AP) -- Officials say a ruptured section of pipeline that spewed oil into a southern Michigan river had a lengthwise rip that likely is less than five feet long.