国际新闻
Is Congo's Ebola outbreak coming under control?
Four months in, Congo's Ebola outbreak is one of the largest ever recorded. Officials and outside experts can't agree on whether it's finally slowing down.
NPR Topics: World ·
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科学与环境
Lead isotopes trace Malawi's mysterious copper ingot hoard to Congo's Kipushi mine
In 1967, a Malawian farmer stumbled upon a hidden hoard of eight copper ingots buried beneath a tree. Now, more than half a century later, scientists have traced the metal to its source: a copper mine nearly 800 km (500 miles) away.
Phys.org - latest science and technology news stories ·