Iran broadcasts footage of underground missile base with warning to 'enemies'
Iranian state television broadcast unprecedented footage on Wednesday (Oct 14) of a deep underground tunnel packed with missiles and launcher units, which officials said could be used if "enemies make a mistake".
The pictures were released just three days after Iran tested a new long-range missile that the United States said may have breached a UN Security Council resolution.
The footage also came a day after Iran's Parliament approved the country's July 14 nuclear deal with six world powers.
Scientists identify protein key to Alzheimer's treatment
A protein that appears to be key in the development of Alzheimer's disease has been identified by scientists who say the discovery could provide a new drug target for dementia.
Known as GPR3, the protein is believed to play an important role in reducing the buildup of amyloid plaques in the brain, a hallmark of Alzheimer's disease.
Research on mice with four different varieties of dementia showed that genetically deleting GPR3 resulted in cognitive improvement and reduced signs of disease in the brain.
Antioxidants speed up cancer spread in mice: Study
Antioxidant supplements that are supposed to boost health and slow ageing could in fact spur the spread of melanoma, the deadliest type of skin cancer, researchers said on Wednesday.
The findings support recent studies showing that an over-the-counter vitamin and another drug containing antioxidants can cause a jump in the number of tumours and hike their aggressiveness.
Antioxidants allow the body to prevent DNA damage from chemicals known as free radicals, and are produced naturally by humans and found in leafy greens, vegetables or fruit.
Tennis: Kvitova qualifies for WTA season finale
Two-time Wimbledon champion Petra Kvitova on Wednesday became the fourth player to qualify for the WTA Finals, joining Simona Halep, Maria Sharapova and Garbine Muguruza in the eight-player field.
Czech star Kvitova won the season-ending showpiece on her 2011 debut.
"I am so excited to qualify for the WTA Finals in Singapore for the fifth straight year," said Kvitova.
Shopping mauled - rampaging Russian bear trashes stores
A Russian brown bear went on an after-hours rampage in a provincial shopping mall, smashing storefronts before being shot dead in a nearby kindergarten by local law enforcement officers.
Video surveillance footage showed the frantic bear roaming the empty shopping centre in the far eastern city of Khabarovsk after it had closed for the night on Tuesday.
Local police said the bear eventually managed to escape and was finally tracked down and surrounded in the courtyard of a kindergarten.