News tagged with earth

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Mars, too, has macroweather

Weather, which changes day-to-day due to constant fluctuations in the atmosphere, and climate, which varies over decades, are familiar. More recently, a third regime, called "macroweather," has been used ...

Nov 13, 2014
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Huge asteroid 2004 BL86 to fly by Earth

Asteroid 2004 BL86, slated to swoosh by Earth on Jan. 26, is the largest known body to pass near our home planet until 2027. But there's no need to panic as the astronomers estimate that the 500 meters-wide ...

Jan 26, 2015
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European eyes on a Californian earthquake

The European Space Agency (ESA) recently captured stunning images of the earthquake that occurred in California's Napa Valley region on August 24, 2014. The earthquake was the largest to rattle northern California ...

Sep 04, 2014
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Observing the Birkeland currents

When the supersonic solar wind hits the Earth's magnetic field, a powerful electrical connection occurs with Earth's field, generating millions of amperes of current that drive the dazzling auroras. These ...

Oct 06, 2014
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What causes the northern lights?

If you live in the high latitudes, like Alaska, or New Zealand, you've probably had a chance to see an aurora. Here in Canada, we call them the Northern Lights or the Aurora Borealis, but the lucky folks ...

Jan 16, 2015
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NEOWISE—a yearlong look at the sky

NASA's Near-Earth Object Wide-field Survey Explorer (NEOWISE) spacecraft discovered and characterized 40 near-Earth objects (NEOs) in the first year after the mission was re-started in December 2013. Eight ...

Jan 20, 2015
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