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.

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NASA

Voyager Update - Where No Spacecraft Has Ever Gone Before!
News story originally written on September 26, 2000

The Voyager program celebrated its 20th anniversary in 1997. Now Voyager is celebrating another milestone! The Voyager 1 and Voyager 2 spacecraft have passed the orbit of Pluto and they are now exploring the environment of space. Scientists have received signals from both spacecraft that mean that the spacecraft are coming near the heliopause. It is thought that the Voyager probes will pass beyond the heliosphere ~2008. They will then enter interstellar space where no spacecraft has ever gone before!

Voyager 1 and Voyager 2 were both launched in the summer of 1977. Their main mission was to explore Jupiter, Saturn, Uranus, and Neptune. The Voyager spacecraft were originally designed to have a lifetime of 5 years. The two spacecraft operated so well that the mission was extended. In fact, Voyager 1 and Voyager 2 are still operating even after 23 years of travelling through the solar system! As of 9/08/00, Voyager 1 was 7,310,000,000 miles from the Sun and Voyager 2 was 5,754,000,000 miles from the Sun. The total distance traveled by Voyager 1 as of 9/08/00 was 13,575,000,000 and the total distance for Voyager 2 was 12,671,000,000 miles!

If there are no serious system failures, it is expected that the two spacecraft will survive another 20 years at which time their power sources will run out.

Last modified December 19, 2003 by Randy Russell.

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