Reuters - Political controversy may have slowed the pace of stem cell science, but the field is still promising enough to attract many talented researchers, stem cell experts said on Saturday.

AFP - Group of Eight finance chiefs sent a warning signal to oil speculators this weekend, highlighting the inflation threat to the global economy in an attempt to cool red-hot energy prices, analysts said.

AFP - The US shuttle Discovery touched down in Florida Saturday, capping a successful 14-day mission to deliver and open Japan's first space laboratory at the International Space Station.

AFP - Australian Prime Minister Kevin Rudd landed in Indonesia's tsunami-hit Aceh on Saturday to see first hand Canberra's billion-dollar effort to help rebuild the province.

AP - Space shuttle Discovery and its crew of seven returned to Earth on Saturday and capped a successful expansion job at the international space station, more spacious and robust thanks to a new billion-dollar science lab.

AP - Democrat Barack Obama told voters Saturday he would push an aggressive economic agenda as president: cutting taxes for the middle class, raising taxes on the wealthy, pouring money into "green energy" and requiring employers to set up retirement saving plans for their workers.

AFP - Iowa's biggest cities were submerged Saturday after swollen rivers forced thousands of residents to flee their homes amid devastating floods in the Midwestern US state.

AP - Less than a month after declaring polar bears a threatened species because of global warming, the Bush administration is giving oil companies permission to annoy and potentially harm them in the pursuit of oil and natural gas.

AP - Space shuttle Discovery and its crew of seven returned to Earth on Saturday and capped a successful expansion job at the international space station, more spacious and robust thanks to a new billion-dollar science lab.

AFP - The US Catholic Bishops' Conference on Friday issued an explicit rejection of research using stem cells from human embryos.

AFP - The US shuttle Discovery was to return to Earth Saturday after a successful mission to deliver and open Japan's first space laboratory at the International Space Station.

AFP - Rising flood waters swamped this central US river city on Friday, forcing residents to flee their homes and officials to abandon city hall amid a wider crisis that has left 20 dead.