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.

Ishtar Terra

Ishtar Terra is one of the Plateau Highlands of Venus, is found near the north pole, and is about the size of the continental United States.

Ishtar Terra contains the four main mountain ranges of Venus named Maxwell Montes, Frejya Montes, Akna Montes, and Danu Montes. These surround the lower plain of Ishtar Terra, which is named Lakshmi Planum. Maxwell Montes is on the east coast, Akna Montes on the west coast, and Frejya Montes to the north, and Danu Montes in a portion of the south.

Ishtar Terra also contains a couple of volcanoes, Sacajawea, Colette, and possibly Cleopatra. Ishtar Terra is also the sight of much tessera. Tessera may provide evidence that the planet's surface is in motion.

Ishtar Terra is named after the Near_Eastern goddess, Ishtar.


Last modified May 19, 2009 by Randy Russell.

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, ranging from seismology, rocks and minerals, oceanography, and Earth system science to astronomy!

Windows to the Universe Community

News

Opportunities

You might also be interested in:

Science, Evolution, and Creationism

How did life evolve on Earth? The answer to this question can help us understand our past and prepare for our future. Although evolution provides credible and reliable answers, polls show that many people turn away from science, seeking other explanations with which they are more comfortable....more

Alpha Regio

Alpha Regio is an example of what is known as a "Plateau Highland" of Venus. The only volcano known to be found on Alpha Regio is Eve Mons. A Plateau Highland is like a continent, and is different from...more

Venus Mountains

The four main mountain ranges of Venus are named Maxwell Montes, Frejya Montes, Akna Montes, and Danu Montes. These are found on Ishtar Terra. Mountain ranges are formed by the folding and buckling of...more

Venus Tessera

Tessera is a unique feature of Venus, and is also known as "complex ridged terrain". These features are found on some of the Venus Plateau Highlands. Tessera is created is by a shortening of the crust....more

Aphrodite Terra

Aphrodite Terra, the Greek name for the goddess Venus, is about the size of half the continent of Africa, and is to be found along the equator of Venus. Aphrodite Terra is different from Ishtar Terra in...more

Beta Regio

Beta Regio is an example of what is known as a volcanic rise, which makes Beta Regio more like an island than a continent. Volcanic rises such as Beta Regio are broad, sloping highlands over 1000 miles...more

Ishtar Terra

Ishtar Terra is one of the Plateau Highlands of Venus, is found near the north pole, and is about the size of the continental United States. Ishtar Terra contains the four main mountain ranges of Venus...more

Venus Channels

This image clearly shows a channel where something once flowed. Without proper measurements, scientists can only guess what sort of liquid may have once flowed through this channel. On Earth, such channels...more

Shop Windows to the Universe

Dig into Montana Before History: 11K Years of Hunter-Gatherers in the Rockies and Plains by D. H. MacDonald, Ph.D. See our online store book 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