Aviation
Science
Grímsvötn ash cloud causes flight disruptions (but Ryanair president says it doesn't exist)
By Erik Klemetti
Science
Grímsvötn eruption closes Keflavik Airport near Reykjavik (and more images of the eruption)
By Erik Klemetti
Science
Closing airspace over eruption due to Eyjafjallajökull ash was "right decision"
By Erik Klemetti