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.
This is a schematic of the interior of Uranus.
Image from: The New Solar System

An Overview of Uranus' Interior

The Giant planets do not have the same kind of structure inside that the terrestrial planets do. Their evolution was quite different than that of the terrestrial planets, and they have much more gas and ice inside.

Uranus's interior composition is primarily that of methane ice.

Motions in the interior of Uranus contribute to the formation of the magnetosphere of Uranus. Heat generated within Uranus contributes to the unusual motions of the atmosphere.


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Motions in Uranus' Interior

Motions in the interior of a planet help carry heat from the inside to the outside. The drawing to the left illustrates the kind of movements that happen in interior of a planet. Material rises from the...more

The Source of Heat from Within Uranus

In astromony, it is a usual procedure to calculate the luminosity of a star, and this calculation indicates the energy and the temperature of the star. When the luminosity of the outer planets was calculated,...more

Motions in Uranus' Interior, part 2

Motions, or currents in the interior of a gas-giant planet such as Uranus may be very different from the motions typical of the Earth's interior. A second idea for the motions in the interior of a gas-giant...more

Diffusion in Uranus Atmosphere

The major gaseous constituent of the atmosphere is methane. At the uppermost reaches of the atmosphere, near the thermosphere, methane gas breaks apart due to the influence of energetic photons or charged...more

An Overview of Uranus' Atmosphere

The bland aquamarine face of Uranus bears witness to the fact that Uranus is enshrouded in clouds. The planet appears to be blue-green because the atmosphere absorbs the red wavelengths of the visible...more

Uranus' Moons and Rings

Uranus has // Call the moon count function defined in the document head print_moon_count('uranus'); fascinating moons and a complicated ring system. The ring system is a completely different form of ring...more

An Overview of Uranus' Interior

The Giant planets do not have the same kind of structure inside that the terrestrial planets do. Their evolution was quite different than that of the terrestrial planets, and they have much more gas and...more

The Poles of Uranus

Uranus is the tilted planet. Its spin axis, which defines the locations of its North and South Poles, is tilted almost 98° away from the "upright" direction perpendicular to its orbital plane. In other...more

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Our Glaciers: Then and Now activity kit helps you see the changes taking place in glaciers around the world. See all our activity kits and classroom activities.

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