Bennu contains minerals and thousands of organic molecules, including the chemical components that make up DNA.
Scientists say the fires that engulfed Los Angeles were made 35% more likely due to climate warming.
A host of hospital building projects have been put back to the 2030s. How will they cope?
Some online sites prescribe a potentially risky hair loss drug without consistent safety checks, BBC finds.
More than twice the size of greater London, the expanse of ice is unpredictable and dangerous.
Nasa astronaut Suni Williams, one of two astronauts stuck on the International Space Station, has completed her first spacewalk since arriving.
A huge private bathhouse is found after lying hidden for 2,000 years under volcanic rock and ash.
Officials at Elon Musk's company said the upper stage was lost, minutes after it launched.
The stress test will involve thousands of people to help the UK prepare for potential future threats.
The inquiry has heard from politicians, civil servants, public health experts and bereaved families.
Amazon founder Jeff Bezos's space company blasts its first rocket into orbit in a challenge to Elon Musk.
They said there was no support after the death and harm suffered by their loved ones.
Pigs, donkeys and even a mini cow named Cuddles found a temporary home after the LA fires.
The UK led the way in this field of science until recently - but now other countries have overtaken. So, how can that lead be recovered?
We meet some of the first NHS patients, as expert says funding everyone eligible would "bankrupt" the service.
Nine in 10 new cars in the country are now battery-powered, and it aims to hit 100% later this year.
Nine in 10 new cars in the country are now battery-powered, and it aims to hit 100% later this year.
A 37-year-old man is in police custody after being arrested on suspicion of attempted murder.
The Kenyan villagers surprised by falling satellite debris heralding a new year full of surprises.
The pill is a combination of two existing anti-parasitic drugs that, used together, appear more effective.