The second spacewalk during a mission of the shuttle Endeavour to the International Space Station proceeded without mishap.

Reuters - NASA is experiencing problems with a $250 million machine for recycling urine and other wastewater into drinking water for astronauts, the U.S. space agency said on Friday.

The most unusual aspect of the scientists? discovery of a new species of penguin is that it?s extinct.

AFP - The International Space Station (ISS) next year will be commanded for the first time by a European, the European Space Agency (ESA) announced here on Friday.

SPACE.com - A new recycling system designed to convert astronaut urine and sweat back into drinking water aboard the International Space Station has encountered its first glitch, mission managers said late Thursday.

AP - Archaeologists have unearthed an elaborately decorated 1,800-year-old chariot sheathed in bronze at an ancient Thracian tomb in southeastern Bulgaria, the head of the excavation said Friday. "The lavishly ornamented four-wheel chariot dates back to the end of the second century A.D.," Veselin Ignatov told The Associated Press in a telephone interview from the site, near the southeastern village of Karanovo.

AP - NASA is scrapping a controversial piece of hardware from its next-generation Mars rover that would have allowed the spacecraft to store rock fragments in a mini-basket for a future mission.

AFP - India on Friday dismissed as "propaganda" a UN report suggesting the formation of a brown cloud over Asia was due to the burning of fossil fuels by countries in the region.

LiveScience.com - A string of bank collapses prompted Alan Greenspan, U.S. economic guru and former head of the Federal Reserve, to admit last month that lending institutions could not always be trusted to regulate themselves. He could have taken a cue sooner by looking at the 2007 collapse of Ginko Financial, a virtual investment bank in the online game "Second Life."

Reuters - Euro zone demand is plunging and price pressures vanishing, business surveys showed on Friday, while central bankers weighed the bleak prospect of deflation.

AP - Terry Fujimoto sees the future of agriculture in the exposed roots of the leafy greens he and his students grow in thin streams of water at a campus greenhouse.

AP - The Interior Department has taken disciplinary action against more than a half dozen workers who accepted lavish gifts, partied and in some cases had sex with employees from the energy companies they regulated.

HealthDay - FRIDAY, Nov. 21 (HealthDay News) -- A new species of the deadly Ebola virus has been identified by American and Ugandan scientists.

AFP - Russian oil group Lukoil could soon become the leading shareholder in Spanish-Argentine energy major Repsol, a possibility that prompted unease in Spain Friday given Repsol's strategic importance.

New evidence suggest that pure ice in the form of glaciers may buried under a thin layer of soil and rock on the red planet.

LiveScience.com - The bacterial cell wall, a primary target for the potent antibiotic penicillin, has been imaged for the first time in 3-D to show exactly how it gives bacteria their structural support and protection. Bacterial cells rely on a surrounding cage-like net, a molecular bag of sorts, to prevent rupturing and to maintain their structural strength, especially as they multiply. ...

Reuters - A massive ball of fire that lit up the skies over two Western Canadian provinces on Thursday evening was likely among the biggest meteor events to be witnessed in Canada this year, one expert said.

AP - Japanese millionaire Daisuke Enomoto had planned to dress up as his favorite cartoon character in outer space and spent $21 million to make it happen. Now he claims the company that was supposed make his dream come true brushed him aside with little more than a "sorry, no refunds."

YOSEMITE NATIONAL PARK, Calif., Nov. 21 -- The windows of the moss-covered wood cabins are dark now, the white canvas tents still. Rows of benches sit like ghosts before the amphitheater, its summer music now hushed by windy gusts and swirling leaves.

SPACE.com - Two astronauts will celebrate the International Space Station's 10th birthday with some mundane, but much needed, spacewalk maintenance.