Science & Health
The Turrialba volcano erupted in the early hours of 12 May, causing ash to scatter over Costa Ricas central valley.
May 13, 2016
The World Health Organisation says air pollution levels have increased again and billions of people are being exposed to dangerous air.
May 12, 2016
Regularly-shaped mounds covering a vast landscape are made by earthworm excrement.
May 11, 2016
- Hormone-eating macrophages behind high blood pressure, finds new study
- Bernard b, nearest exoplanet found; Alien life possible there, say Spanish astrophysicists
- China's Chang'e-4 sprouts cotton plant on Moon, and now its dead
- Existence of alien life is something we can never cover up, says NASA official
- Aliens waiting for humans in interstellar space? Harvard researcher claims so