Tag Archives: sun

What If We Were Hit By a Solar Tsunami?

You think the disaster in Japan is bad? What if the sun pops off a tsunami that wipes out power to the entire United States? Fact 1. In 1859 the sun unleashed a flare that, if it happened today, could … Continue reading

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The Sun Erupts

Well, make that “erupted.” Two weeks ago, NASA’s Sun-orbiting Solar Dynamic Observatoryspacecraft imaged an impressively large prominence erupting from the surface. … The scale of the prominence is huge — the entire Earth would easily fit under the flowing curtain of hot gas. APOD: 2011 … Continue reading

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Here Comes the Sun

All of it. We can now see the entire sun. On Feb. 6th, NASA’s twin STEREO probes moved into position on opposite sides of the sun, and they are now beaming back uninterrupted images of the entire star—front and back. … Continue reading

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Of a Hole in the Sun

From Space Weather: A dark croissant-shaped hole has opened up in the sun’s atmosphere, and it is spewing a stream of solar wind into space. NASA’s Solar Dynamics Observatory took this picture of the vast opening during the early hours … Continue reading

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2010 By The Numbers

Jeff Masters surveys the global weather for 2010. First, 2010 is tied with 2005 for the warmest year in the historical record. Here are the departures from “normal” on a Mercator projection. Earth’s warmest temperatures in 2010, relative to average, … Continue reading

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Why the Sun’s Corona is So Much Hotter than Its Surface

One of the most enduring mysteries in solar physics is why the Sun’s outer atmosphere, or corona, is millions of degrees hotter than its surface. Now scientists believe they have discovered a major source of hot gas that replenishes the … Continue reading

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Ah Distinctly I Remember, It was Balmy in November

According to the National Climatic Data Center (NCDC), November 2010 was the warmest on record. According to NASAs Goddard Institute for Space Studies, it was the second warmest on record. Both agree that January-November 2010 was the warmest on record. All … Continue reading

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