Current Events

  • 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

    x

    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

    x

    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

    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.
The Constellation Bootes, the Herdsman
Click on image for full size

Bootes

Bootes, the herdsman, rides through the sky during the late Spring and early Summer. Bootes is fun to look at because it has the shape of a kite, with the bright star Arcturus at the point of the kite where the tail is attached.

Arcturus is the brightest star in Bootes, and the fourth brightest star in the whole sky. It is a very large ("supergiant"!) star, with a bright orange-red color.

Bootes was identified with a farmer who plows the land during spring. The Romans believed that Bootes was the herdsman of the seven oxen represented by the seven stars of the Big Dipper.

Shop Windows to the Universe Science Store!

The Summer 2010 issue of The Earth Scientist, available in our online store, includes articles on rivers and snow, classroom planetariums, satellites and oceanography, hands-on astronomy, and global warming.

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

Arcturus: Orange Giant

What's in a Name: Greek for "Bearkeeper". The bear is the constellation Ursa Major (the Great Bear). Claim to Fame: 4th brightest star in the sky. The reddish light of Arcturus striking a photoelectric...more

Ursa Major

Ursa Major is a very famous constellation. It is also called the Great Bear. Ursa Minor is the Little Bear. The body and tail of the Big Bear make up the Big Dipper. There are a lot of myths about this...more

Callisto and her son Arcas

Callisto was a river goddess. Callisto was the favorite companion of the moon goddess Diana. She used to accompany Diana on the hunt. One day the god Jupiter saw the beautiful Callisto and fell in love...more

Bootes

Bootes, the herdsman, rides through the sky during the late Spring and early Summer. Bootes is fun to look at because it has the shape of a kite, with the bright star Arcturus at the point of the kite...more

Hydra

Hydra, the sea serpent, may be the longest and largest of all constellations, but its stars are very faint. It is so long that four constellations run along its northern side. These are Cancer, Leo, Virgo...more

Leo

Leo, the lion, is easy to find because his head looks like a backward question mark with the bright star Regulus at the bottom. Regulus, Leo's brightest star, means "little king" in Latin. This star is...more

40 Eridani B - Burnt-Out Cinder

What's in a Name: Star designated 40 in the constellation Eridanus. Claim to Fame: One of the first white dwarfs found. A white dwarf is the exposed extremely hot core of a star that has blown off its...more

Shop Windows to the Universe

Warnings: The True Story of How Science Tamed the Weather by Mike Smith tells the story of our storm warning system. 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