Current Events

  • Irish Chronicles Document Links Between Volcanoes and Weather
    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong corr...Read more

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    Irish Chronicles Document Links Between Volcanoes and Weather

    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong correlation between the occurrence of volcanic eruptions and extreme cold weather in Ireland over a 1200 year period. Data analyzed in this study cover the period from 431 to 1649, during which time up to 48 volcanic eruptions are identified in Greenland ice core records through deposition of volcanic sulfate in annual layers of ice. You can find the study (open access), published on 6 June 2013 in IOP Publishing's journal Environmental Research Letters, at http://iopscience.iop.org/1748-9326/8/2/024035/article. Find out more about how volcanoes can influence climate.
  • EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US
    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, acco...Read more

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    EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US

    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, according to the National Weather Service in Norman Oklahoma. The tornado, which remained on the ground for 40 minutes and reached 2.6 miles across (4.2 km), took the lives of 18 people including storm chasers Tim Samaras, Paul Samaras and Carl Young. For more information on the tornado, visit http://ow.ly/i/2hfDG.
  • 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.

Neptune Image List




This is a color image of Neptune showing the Great Dark Spot. (Courtesy of NASA)
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This is an image showing crescents of Neptune and its moon Triton taken by Voyager 2 on August 31, 1989. (Courtesy of NASA)
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This is a false color image of Neptune taken by the Voyager 2. (Courtesy of NASA)
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This is an image showing the disappearance of the Great Dark Spot taken by the Hubble Space Telescope. The second picture was taken about 9 hours later showing the opposite hemisphere. (Courtesy of NASA/STScI and Dr. Heidi B. Hammel)
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These are three images of Neptune taken on October 10, October 18, and November 2, 1994 from the Hubble Space Telescope. (Courtesy of NASA/STScI and Dr. Heidi B. Hammel)
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This is an image of Neptune showing clouds. (Courtesy of NASA)
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This is an image of the Scooter taken by the Voyager 2. The Scooter is a small irregular white cloud that spins around Neptune about every 16 hours. (Courtesy of NASA)
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This is a closer view of the Great Dark Spot and the Scooter. The Scooter is small and bright and to the left of the dark spot. This image was taken on the Voyager Mission in August 1989. (Courtesy of NASA)
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This is a close-up view of the Great Dark Spot taken on the Voyager in August 1989. (Courtesy of NASA)
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This is an image of the Small Dark Spot which is south of the Great Dark Spot. (Courtesy of NASA)
(298K GIF)


This is an image of cirrus-type clouds in Neptune's northern hemisphere. The clouds extend for thousands of miles. (Courtesy of NASA)
(256K GIF)


This is true-color image of clouds east of the Great Dark Spot taken by the Voyager 2. (Courtesy of NASA/JPL)
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This is an image of Neptune's twisted rings taken by Voyager 2. (Courtesy of NASA)
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This is a color image of Triton taken by Voyager 2 in August 1989. Triton is Neptune's largest satellite. (Courtesy of NASA)
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This is a computer generated rendering of one of the caldera type depressions on Triton taken on August 24, 1989. (Courtesy of NASA)
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This is an image of Proteus, the first of six new moons discovered by Voyager 2. (Courtesy of NASA)
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Last modified November 13, 2000 by Jennifer Bergman.

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