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.

Space Weather Introduction

   What are scientists talking about when they say "space weather"? How is it like weather on Earth? How is it different? How does space weather affect me? Can astronomers forecast space weather, and if so, how? What are the unsolved mysteries in the field of space weather? Read on...

Sunspots don't look that big when you see them on the Sun (remember NEVER look directly at the Sun), but in fact they can be enormous! This composite image shows just how big sunspots can be, to scale with an image of Earth. Sunspots can be as big, or bigger, than Earth. The <a href="/sun/activity/sunspot_history.html">earliest written record of a sunspot observation</a> was made by Chinese astronomers around 800 B.C.<p><small><em>Image courtesy of NASA/Trace Mission</em></small></p>

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Explore Space Weather Introduction

What is Space Weather?

Weather on Earth is the set of ever-changing ambient conditions in our atmosphere. Its elements ...Read more

Earth Weather vs. Space Weather

How is space weather similar to Earth weather? How are they different? Does space weather affect ...Read more

How Scientists Study Space Weather

Scientists combine various techniques to study space weather. Earth-based and orbiting telescopes ...Read more

How does Space Weather affect Earth and Human Society?

Although space weather forecasts are not normally featured on the evening news, space weather ...Read more

Space Weather Mysteries & Unanswered Questions

The study of space weather is a relatively young science. As such it has many unanswered questions ...Read more

Historical Events

5/30 7.5 magnitude quake hits Quetta, Pakistan in 1935
5/31 7.9 magnitude earthquake hits Peru in 1970
6/8 Giovanni Cassini, an Italian-French astronomer, was born on this date in 1625 Details

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Did you know?

Do you know Kepler’s three laws of planetary motion?

Do you know what the gods Re, Tonatiuh, and Shamash all have in common?

 

Earth and Space Science Concept of the Day

Do you know what this word or phrase means?

Rayleigh wave
xRayleigh wave : A Rayleigh wave is a seismic surface wave causing the ground to shake in an elliptical motion, with no transverse, or perpendicular, motion.

Click on the word to find out!

Research Highlights

Geologists Uncover Major Ancient Human Ancestor in South Africa

Researchers working in South Africa have discovered two remarkably well-preserved fossil skeletons of an ancient human ancestor dating to almost two million years ago. The discovery is described in two...Read more

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