Defending champion Roger Federer was stunned by fiery Greek Stefanos Tsitsipas who ended his bid for a record seventh Australian Open Sunday on a day of upsets that also saw second seed Angelique Kerber crash

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Global warming is melting ice in Antarctica faster than ever before - about six times more per year now than 40 years ago - leading to increasingly high sea levels worldwide, scientists warned on Monday.

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The risks of catastrophic weather and flooding from climate change top the list of concerns for business leaders heading into this week's World Economic Forum meeting in Davos. An annual WEF report - based on

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Between two and three times as many asteroids have struck the Earth and the Moon since the age of the dinosaurs, when one massive space rock collision wiped them out forever, researchers said on Thursday.

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Virtual reality showed off its spectacular side at the Consumer Electronics Show this week, whisking people onto hockey arenas, baseball fields and even into the internet with animated film trouble-maker "Wreck-it Ralph." But even with

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Amazon announced plans Thursday to hold a conference open to the public on robotics, space and artificial intelligence, as well as to discuss future applications of emerging technologies. The re:MARS conference in Las Vegas will

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YouTube on Tuesday clarified rules against posting videos of dangerous pranks, as risky "challenges" prompt people to video themselves doing things like biting into laundry soap or driving blindfolded. The company already forbid content inciting

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Gemalto, the world leader in digital security, revealed Tuesday that only around half (48 percent) of businesses can detect if any of their IoT devices suffers a breach. This comes despite companies having an increased

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Royal Dutch Shell has appointed Wael Sawan to head its oil and gas production division, replacing Andy Brown who will step down after 35 years at the Anglo-Dutch company. Sawan, 44, a Canadian citizen of

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Top US aluminum producer Alcoa Corp beat Wall Street estimates for quarterly profit on Wednesday, buoyed by strength in its alumina segment, but shares slipped after the company did not provide a closely watched profit

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