A solar-powered aircraft flying between Japan and Hawaii as part of a round-the-world bid passed the halfway point of the perilous Pacific Ocean crossing Wednesday, and smashed its own endurance record.
Energy & Green Tech
Jul 1, 2015
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50
Toilets are taken for granted in the industrialized West, but still are a luxury for a third of the world's people who have no access to them, according to a report by the World Health Organization and UNICEF.
Social Sciences
Jul 1, 2015
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49
Seven out of 10 college students feel stressed about their personal finances, according to a new national survey.
Social Sciences
Jul 1, 2015
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41
