For those on the go, finding a clean toilet in Singapore and giving feedback on the best and worst commodes is now in hand with a new app for mobile phones and tablet computers.

Fish piracy — seafood caught illegally, not reported to authorities or outside environmental and catch regulations — represents as much as US$10 billion to US$23 billion in global losses each year, a nonprofit conservation group estimated Wednesday.

Landing astronauts safely on Mars is one of the biggest technological hurdles for any future manned mission to the Red Planet, even more complicated than last year's daring rover touchdown.

Brazilian geologists on Monday announced the discovery, 1,500 kilometers (900 miles) from Rio, of what could be part of the continent submerged when the Atlantic Ocean was formed as Africa and South America drifted apart 100 million years ago.

Japan, China and South Korea agreed Monday to cooperate in the fight against cross-border air pollution, despite strained relations between the neighbors because of territorial disputes.

Netbook pioneer Asustek Computer Inc. said Monday it is planning a new version of its Windows-based Transformer Book laptops to carve out a new share of the smaller and inexpensive computer category.

Millions of birds that stop at coastal wetlands during annual migrations could die as rising sea levels and land reclamation wipe out their feeding grounds, researchers warned Monday.

A baby Sumatran orangutan swings playfully on a branch at an Indonesian rescue center, a far cry from the terror he endured when his pristine rainforest home was razed to the ground.

NASA and private sector experts now agree that a man or woman could be sent on a mission to Mars over the next 20 years, despite huge challenges.

Microsoft's Hotmail, the free webmail service used by hundreds of millions of people around the world, was phased out Friday, as the U.S. tech giant completed a rebranding to Outlook.com.