MH370: French experts examine Reunion wing part

Experts are due to examine part of a wing that washed up on the island of Reunion last week and is thought to have belonged to missing flight MH370.

The Boeing 777 piece has been taken to Toulouse in south-west France.

An Australian transport expert is helping out in the examination at the invitation of the French authorities. Malaysian experts are also attending.

They may pronounce on the origin of the wing part either on Wednesday or later this week, officials say.

For reasons that remain unclear the Malaysia Airlines plane veered off course on its way to Beijing in March 2014 and crashed into the sea with 239 people on board.

Four-legged snake ancestor 'dug burrows

The snake's legs were just a few millimetres long
A 113-million-year-old fossil from Brazil is the first four-legged snake that scientists have ever seen.

Several other fossil snakes have been found with hind limbs, but the new find is estimated to be a direct ancestor of modern snakes.

Its delicate arms and legs were not used for walking, but probably helped the creature to grab its prey.

The fossil shows adaptations for burrowing, not swimming, strengthening the idea that snakes evolved on land.

That debate is a long-running one among palaeontologists, and researchers say wiggle room is running out for the idea that snakes developed from marine reptiles.

Malaria vaccine gets 'green light'

The world's first malaria vaccine has cleared one of the final hurdles prior to being approved for use in Africa.

The European Medicines Agency gave a positive scientific opinion after assessing its safety and effectiveness.

It represents a 'green light' for the Mosquirix jab, developed by GlaxoSmithKline.

The World Health Organization will consider later this year whether to recommend it for children, among whom trials have yielded mixed results.

Malaria kills around 584,000 people a year worldwide, most of them children under five in sub-Saharan Africa.

Fifa corruption: Jeffrey Webb pleads not guilty in US

Former Fifa Vice-President Jeffrey Webb has pleaded not guilty in connection with a massive corruption scandal in the world's football governing body.

He was placed under house arrest on $10m (£6.4m) bail by a New York judge.

Mr Webb, from the Cayman Islands, is accused of accepting bribes worth millions of dollars in connection with the sale of marketing rights.

He was detained in Switzerland in May, along with six football officials, and was this week extradited to the US.

HIV: UN meets goal to treat 15 million

The goal to get HIV treatment to 15 million people by the end of 2015 has already been met, says the United Nations Aids agency.

The landmark figure was reached in March - nine months ahead of schedule.

It follows decades of global efforts and investment to get antiretroviral drugs to those in need - such as people living in sub-Saharan Africa.

In 2000, when the UN first set goals to combat HIV, fewer than 700,000 people were receiving these vital medicines.

According to UN Aids, which has a report out today, the global response to HIV has averted 30 million new HIV infections and nearly eight million Aids-related deaths since the millennium.