April 25, 2015★★★★★
2015 Nepal earthquake
A magnitude 7.8 earthquake strikes central Nepal, killing nearly 9,000 people and destroying heritage sites in the Kathmandu Valley.
Disaster· Nepal, India, China
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Events this year
September 14, 2015★★★★★
First detection of gravitational waves
The LIGO detectors record gravitational waves from two merging black holes, confirming a prediction of general relativity; the result is announced in February 2016.
Science· United States
Ongoing
2013 – 2016★★★★★
West African Ebola epidemic
The largest Ebola outbreak in history, centred on Guinea, Liberia and Sierra Leone, killed more than 11,000 people.
Disease· Guinea, Liberia, Sierra Leone