Current Events

  • Atmospheric CO2 Level Tops 400 ppm
    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm rep...Read more

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    Atmospheric CO2 Level Tops 400 ppm

    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well. The level of atmospheric greenhouse gases continues to increase, now over 120 ppm since the Industrial Revolution began. For more on the Keeling Curve, see http://keelingcurve.ucsd.edu/. Find out more about greenhouse gases and warming.
  • Massive Tornado Outbreak on Tornado Alley
    The week of May 19 brings dozens of tornadoes to Tornado Alley in the states of Oklahoma, Kansas, Io...Read more

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    Massive Tornado Outbreak on Tornado Alley

    The week of May 19 brings dozens of tornadoes to Tornado Alley in the states of Oklahoma, Kansas, Iowa, Illinois and Missouri. On May 20th, a massive tornado struck Moore, Oklahoma, devastating communities - destroying over 100 homes and hitting two elementary schools and a hospital - with many casualties and deaths. Our thoughts are with our friends and colleagues suffering from these storms. For more on the May 20th storms, see the NOAA Storm Prediction Center Storm Report.
  • Kansas Legislator Proposes Bill to Outlaw Sustainability Education
    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of ...Read more

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    Kansas Legislator Proposes Bill to Outlaw Sustainability Education

    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of sustainability. Here is a link to the one-page bill: http://www.kslegislature.org/li/b2013_14/measures/documents/hb2366_00_0000.pdf. See report on Bloomberg News.

Solar Eclipse Sites

Sites About the August 11, 1999 Solar Eclipse

August 11, 1999, Solar Eclipse Images

Goddard News for August 6, 1999 View an Eclipse on the Internet

BBC Online: Solar Eclipse Lots of information about the eclipse

Eclipse on August 11, 1999. Information on the coming solar eclipse.

Eclipse 1999 Includes a map of the exact path of the eclipse.

Laupheim Observatory Includes a countdown to the solar eclipse.

Live! Eclipse Will provide images of the solar eclipse live in both English and Japanese.

NASA's Solar Eclipse 99 Includes information about viewing the eclipse live on their web site.

Solar Eclipse '99 Chat Chat about the solar eclipse!



General Information About Solar Eclipses
Kidseclipse: The Millennial Eclipse Web site devoted to teaching kids about the solar eclipse.

Past Solar Eclipses List of previous solar eclipses.

Solar Eclipse Windows to the Universe solar eclipse page.

Solar Eclipse Image Archive

The history behind solar eclipses

Viewing Solar EclipsesAdvice on safely viewing a solar eclipse.



Information about the Sun
Our Quickie Question Archive Includes many answers to various Sun questions.

Solar Mythology Many myths are about the Sun.

Sun




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Traveling Nitrogen Classroom Activity Kit

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Last Solar Eclipse of the Millennium on August 11

The last solar eclipse of this millennium occurred on August 11, 1999. Amateurs and scientists witnessed a truly awesome site. This was a total eclipse, which means the Moon completely covered the Sun....more

Solar Eclipses

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The Solar Corona

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The Photosphere - the "Surface" of the Sun

Most of the energy we receive from the Sun is the visible (white) light emitted from the photosphere. The photosphere is one of the coolest regions of the Sun (6000 K), so only a small fraction (0.1%)...more

Helmet Streamers and the Magnetic Structure of the Corona

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Sunspots

Sunspots are dark, planet-sized regions that appear on the "surface" of the Sun. Sunspots are "dark" because they are colder than the areas around them. A large sunspot might have a temperature of about...more

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