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.

Solar System Discoveries

Who discovered the planets? For many of the planets in the solar system, we'll never know! Some planets are so bright in the sky that the first observers of these planets are lost in the distant past of early civilizations. Venus was carefully observed in early Mesoamerican cultures. The most distant planets were discovered in the last century, and we're now still discovering Dwarf planets, in our solar system and beyond. Visit the links here to find out more about what we know about the discovery of planets."
Have you ever seen the <a href="/earth/Magnetosphere/aurora.html&edu=elem&dev=1">Southern or Northern Lights</a>? Earth isn't the only planet that puts on these beautiful light shows, which are also called the "<a href="/earth/Magnetosphere/aurora.html&edu=elem&dev=1">aurora</a>". Aurora have been seen at both <a href="/saturn/saturn_polar_regions.html&edu=elem&dev=1">poles of Saturn</a>, too, as well as at the poles of <a href="/jupiter/magnetosphere/jupiter_aurora.html&edu=elem&dev=1">Jupiter</a>. These "<a href="/earth/Magnetosphere/tour/tour_earth_magnetosphere_09.html&edu=elem&dev=1">curtains of light</a>" sometimes rise 1,200 miles (2,000 km) above the <a href="/saturn/atmosphere/S_clouds_overview.html&edu=elem&dev=1">cloud tops</a> near Saturn's poles. The <a href="/space_missions/HST.html&edu=elem&dev=1">Hubble Space Telescope</a> took this picture in 2004.<p><small><em>Image courtesy of NASA, ESA, J. Clarke (Boston University), and Z. Levay (STScI)</em></small></p>Neptune's <a href="/neptune/lower_atmosphere.html&edu=elem&dev=1">atmosphere</a> shows a striped pattern of <a href="/neptune/atmosphere/N_clouds_overview.html&edu=elem&dev=1">clouds</a>. This cloud pattern is very similar to that of <a href="/jupiter/jupiter.html&edu=elem&dev=1">Jupiter</a> and <a href="/saturn/saturn.html&edu=elem&dev=1">Saturn</a>. Neptune even has a <a href="/neptune/atmosphere/N_clouds_GDS.html&edu=elem&dev=1">Great Dark Spot</a> similar to Jupiter's <a href="/jupiter/atmosphere/J_clouds_GRS.html&edu=elem&dev=1">Great Red Spot</a>. The Great Dark Spot of Neptune is thought to be a hole, similar to the hole in the <a href="/earth/Atmosphere/ozone_layer.html&edu=elem&dev=1">ozone layer on Earth</a>, in the <a href="/physical_science/chemistry/methane.html&edu=elem&dev=1">methane</a> cloud deck of Neptune.<p><small><em>Image courtesy of NASA</em></small></p><a href="/mercury/mercury.html&edu=elem&dev=1">Mercury</a>, the innermost planet of the solar system, is a little bigger than the Earth's Moon. The <a href="/mercury/Interior_Surface/Surface/surface_overview.html&edu=elem&dev=1">surface</a> of the planet is covered with craters, like the Moon, but temperatures there can reach over 800&deg;F because Mercury is so close to the Sun and rotates so slowly. This picture was taken by the <a href="/space_missions/robotic/messenger/messenger.html&edu=elem&dev=1">MESSENGER spacecraft</a> in October 2008.<p><small><em>Image courtesy of NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington.</em></small></p>The uniquely red <a href="/mars/interior/Martian_global_geology.html&edu=elem&dev=1">global surface</a> of Mars is marked by many interesting features - some like those on the <a href="/earth/earth.html&edu=elem&dev=1">Earth</a> and others strangely different. The reddish color is caused by rust (iron oxide) in the <a href="/mars/exploring/martian_soils.html&edu=elem&dev=1">soil</a>. Some of these features are; <a href="/mars/interior/mars_volcanoes.html&edu=elem&dev=1">volcanoes</a>, canyon systems, <a href="/mars/interior/Martian_running_water.html&edu=elem&dev=1">river beds</a>, <a href="/mars/interior/Mars_cratered_terrain.html&edu=elem&dev=1">cratered terrain</a>, and <a href="/mars/interior/Martian_dunefields.html&edu=elem&dev=1">dune fields</a>. This image shows a global mosaic of 102 Viking 1 Orbiter images of Mars taken in February, 1980.<p><small><em>Image courtesy of NASA.</em></small></p>

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Explore Solar System Discoveries

Discovery of Mercury

Mercury's orbit is so close to the Sun that it is hard to see from the ground. This is why ...Read more

Discovery of Venus

Venus is one of the brightest objects in the sky. It is always found near the Sun. It rises ...Read more

Discovery of Mars

Mars is a bright, red object in the sky. It is very easy to see, which means that even people ...Read more

Discovery of Jupiter

Jupiter is the biggest planet in our solar system! It's also very bright in the sky. We don't ...Read more

Discovery of Saturn

Saturn is the second largest planet in our solar system. It is also very bright in the sky. ...Read more

Discovery of Uranus

Uranus was discovered in 1781 by William Herschel. He argued with his friends over its name. ...Read more

Discovery of Neptune

Neptune was discovered in 1846. But it wasn't discovered using a telescope. Scientists used ...Read more

Discovery of Pluto

The ninth planet in our solar system is Pluto. It was discovered in 1930 by Clyde Tombaugh. ...Read more

Discovery of Ceres

Ceres is the largest asteroid in the main asteroid belt. It was classified as a "dwarf ...Read more

Discovery of Haumea

Haumea is a dwarf planet in our Solar System. Haumea is officially the fifth dwarf planet. ...Read more

More about Solar System Discoveries

Historical Events

5/22 ~7.9 magnitude earthquake hits near Xining, Tsinghai, China in 1927
5/24 Nicholas Copernicus, a Polish astronomer, died on this date in 1543 Details
5/30 7.5 magnitude quake hits Quetta, Pakistan in 1935

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Did you know?

Did you know that the physics of a spinning dancer and the formation of the solar system have something in common?

Did you know that there may be 200 or so dwarf planets in the solar system, out to the Kuiper Belt?

 

Earth and Space Science Concept of the Day

Do you know what this word or phrase means?

S-wave
xS-wave : An s-wave (for shear wave) is a seismic body wave that shakes the ground back and forth perpendicular to the direction the wave is moving

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Research Highlights

Scientists Study "Glaciovolcanoes," Mountains of Fire and Ice

In the spring of 2010, the eruption of a volcano called Eyjafjallajökull in Iceland cancelled many flights in Europe. Eyjafjallajökull is a glaciovolcano, which means it's a volcano that is covered by...Read more

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