The NOAA National Geophysical Data Center maintains a data set of annual magnetic north pole coordinates going back to the…

The recent changes at Tampa Bay International Airport regarding magnetic pole re-calibration and runway closure, chart alignment and runway number…

Permalink Remember that volcano that disrupted European air traffic for a few weeks during April, 2010? Have any idea how…

Permalink The upcoming solar cycle maximum is due to peak during 2012 and 2013. We will be seeing more and…

The average time between Katla eruptions since 80 BC is 52 years. The Icelandic volcano has pretty much followed this…

Permalink A significant danger from volcanoes is the volcanic ash that can be ejected high into the atmosphere and cause…

  Volcanoes What are volcanoes? How Are Volcanoes Formed? A volcano in eruption is one of the most dramatic, fascinating,…

Observing the volcanic ash cloud and the disruptions to northern Europe from Iceland’s recent volcanic eruption has caused me to…