Mauna Kea When you think of the tallest mountains, instinctively, Mount Everest comes to mind. But here's a shocker: Mauna ...

The Juno mission has discovered remarkably strong activity on Jupiter's moon, Io. The hot spot emits eruptions with energy ...

Dozens of minot earthquakes in Santorini have led authorities to take precautionary measures, including school closures, to ...

Eight of the 10 largest companies are in the tech sector ... It first became the world's most valuable company on Aug. 9, 2011, just 15 days before Steve Jobs resigned as CEO.

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