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  • Irish Chronicles Document Links Between Volcanoes and Weather
    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong corr...Read more

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    Irish Chronicles Document Links Between Volcanoes and Weather

    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong correlation between the occurrence of volcanic eruptions and extreme cold weather in Ireland over a 1200 year period. Data analyzed in this study cover the period from 431 to 1649, during which time up to 48 volcanic eruptions are identified in Greenland ice core records through deposition of volcanic sulfate in annual layers of ice. You can find the study (open access), published on 6 June 2013 in IOP Publishing's journal Environmental Research Letters, at http://iopscience.iop.org/1748-9326/8/2/024035/article. Find out more about how volcanoes can influence climate.
  • EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US
    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, acco...Read more

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    EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US

    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, according to the National Weather Service in Norman Oklahoma. The tornado, which remained on the ground for 40 minutes and reached 2.6 miles across (4.2 km), took the lives of 18 people including storm chasers Tim Samaras, Paul Samaras and Carl Young. For more information on the tornado, visit http://ow.ly/i/2hfDG.
  • 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.
The constellation, Draco the dragon.
Click on image for full size
Chris Gleason, Windows to the Universe

Draco the Dragon

Draco the dragon is a long constellation found in the Northern Hemisphere. It is a circumpolar constellation, which means it revolves around the North Pole. People in the Southern Hemisphere can't see it.

The head is made of four stars. You can find it north of Hercules. The body slithers around and ends between the Big and Little Dippers.

One myth about the dragon comes from Greece. In the story, the dragon Ladon protects the golden apple tree from thieves.

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Constellations

Constellations are pictures made up of bright stars which appear close to each other on the sky. Like a game of connect the dots, if you use your imagination when you look at the stars, you may see a dog...more

Draco the Dragon

The dragon was very important in mythology. In one Greek myth, a dragon named Ladon guarded the golden apple tree. Heracles had to steal the golden apples for one of his twelve labors. Heracles asked...more

Northern Hemisphere Constellations

Many different constellations fill the evening sky in the northern hemisphere. Depending on your location and the season, different constellations can be seen. Northern circumpolar constellations can be...more

Cassiopeia

Cassiopeia was the queen of an ancient land. She and her husband, Cepheus, had a daughter named Andromeda. Cassiopeia would always say she was prettier than the sea nymphs. A monster called Cetus was...more

King Cepheus

Cepheus was a king in Greek mythology. His wife was Cassiopeia and his daughter was Andromeda. Cassiopeia once said some things to make the sea god angry. A monster was sent up to eat Andromeda, but Perseus...more

Draco the Dragon

Draco the dragon is a long constellation found in the Northern Hemisphere. It is a circumpolar constellation, which means it revolves around the North Pole. People in the Southern Hemisphere can't see...more

Ursa Minor (Little Bear)

Ursa Minor is usually called the Little Dipper. There is also a constellation called Ursa Major, which is called the Big Dipper. In many different myths, the two are bears. In Greek mythology, Hera turned...more

Black Holes

No one is sure that Black Holes really exist, but most scientists think they do. They are very hard to see, because they are black and so is space. They are black because their gravity is so strong that...more

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