News tagged with regionalization

Uber now valued at $40 bn

Popular but controversial US ride-sharing startup Uber is now valued at $40 billion, it said Thursday, twice what it was worth six months ago, after raising a fresh $1.2 billion in funding.

Dec 04, 2014
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Sources of the solar wind

The solar chromosphere is the region between the Sun's surface and its hot, million-degree corona. Within this complex interface zone, only a few thousand kilometers deep, the density of the gas drops by ...

Nov 05, 2014
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Tracking a gigantic sunspot across the Sun

An active region on the sun โ€“ an area of intense and complex magnetic fields โ€“ rotated into view on Oct. 18, 2014. Labeled AR 12192, it soon grew into the largest such region in 24 years, and fired off ...

Oct 31, 2014
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