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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.
This is a picture of Hubble above the Earth. The picture was taken by astronauts on the Space Shuttle.
Click on image for full size
Image courtesy NASA.

Hubble Servicing Mission Canceled
News story originally written on April 21, 2004

The Hubble Space Telescope is getting old. Every few years it needs to have astronauts visit it and fix worn out parts. NASA had planned to have the Shuttle visit Hubble in 2006. However, NASA decided in January 2004 to cancel that mission. NASA thinks it is too dangerous to send a mission to Hubble. NASA is being very careful about Space Shuttle missions since the Columbia disaster.

Without the repair mission Hubble may stop working in a few years. It has batteries that might wear out. Hubble also has gyroscopes that help steer the telescope. Those gyroscopes may break down soon. Engineers think Hubble might stop working in 2006 or 2007. They can't tell for sure, though. Let's hope Hubble keeps working for a few more years!

NASA is making a new space telescope. The new telescope is called the James Webb Space Telescope. The new telescope is much larger than Hubble.

NASA has a plan for Hubble when it finally stops working. NASA will attach a rocket to Hubble. The rocket will steer Hubble towards Earth. Hubble will crash-land in an ocean, far away from places where people live.

Last modified April 21, 2004 by Julia Genyuk.

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