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

    x

    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

    x

    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

    x

    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 an image of Ariel.
Click on image for full size
NASA

Ariel

Ariel was discovered by W. Lassell in 1851. Ariel is about as wide as the Oregon coast.

The surface of Ariel is hard to see in this picture, but it shows that Ariel may be one of the icy moons.

Last modified November 19, 2000 by Jennifer Bergman.

Shop Windows to the Universe Science Store!

Our online store includes issues of NESTA's quarterly journal, The Earth Scientist, full of classroom activities on different topics in Earth and space science, as well as books on science education!

Windows to the Universe Community

News

Opportunities

You might also be interested in:

Icy Moon

Icy moons are moons which are made of ice. These moons are unlike the earth's moon, which is made of rock. Perfect examples of icy moons are 3 of the Galilean satellites, Europa, Ganymede, and Callisto....more

Uranus' Moons and Rings

Uranus has // Call the moon count function defined in the document head print_moon_count('uranus'); interesting moons and a ring system. At Uranus there is even a half ring, or "ring arc". The moons are...more

Miranda

Miranda was discovered by G. Kuiper in 1948. Miranda one of the smallest icy moons, and is as wide as the distance from Los Angeles to San Francisco. The surface features of this moon are hard to see in...more

Surface of Miranda

The surface of Miranda is very unusual. It is not like any other moon in the solar system. Miranda has many craters but also very big grooves. These show that there has been activity inside Miranda in...more

Oberon

Oberon was discovered by W. Herschel in 1787. Oberon is about as wide as the state of California is long. Oberon is probably one of the icy moons. ...more

Surface of Oberon

The surface of Oberon is like many icy moons. It appears to be changed for it does not have many craters. Instead it has grooves similar to those found on Ganymede. These grooves extend for ma ny kilometers...more

Surface of Oberon

The surface of Oberon is like many icy moons. It appears to be changed for it does not have many craters. Instead it has grooves similar to those found on Ganymede. These grooves extend for ma ny kilometers...more

Puck

Puck was discovered by Voyager 2 in 1986. Puck is one of the small moons, and is about as wide as a county....more

Shop Windows to the Universe

Arches National Park Geology Tour provides an extensive, visually rich description of the geology of Arches, by Deborah Ragland, Ph.D. See our DVD collection.

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF