As the US space agency sends another probe to explore the surface of the Red Planet, the BBC News website finds out why this mission will be different.
Stone age craftsmen in China were polishing objects using diamond 2,000 years before anyone else had the same idea, new evidence suggests.
Rainwater harvesting could prove a cheap, easy solution to Africa's water woes, according to a UN report.
The US space agency says the veteran Mars Global Surveyor spacecraft is probably lost and irrecoverable.
Spectacular archaeological find on Peru's coast yields secrets of the 1,000-year-old "Lords of Sican".
The growth in global carbon dioxide emissions accelerated sharply around the year 2000, a new analysis shows.
Get all the latest news, live updates and content about Science & Environment from across the BBC.
Indian archaeologists say gold jewellery belonging to the Indus Valley civilisation has been found in the state of Uttar Pradesh.
Who owns the map of the human body?
Archeologists in India say they have excavated one of the world's tallest Buddhist stupas in the eastern state of Bihar.
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