A recent article on neutrino studies being carried out with the SuperKamiokande detector at the Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, stated that Monbusho has been asked for a budget increase from ¥5 million to ¥10.4 billion for a project to detect neutrinos (see Nature 395, 107; 1998). The second figure should have read ¥1.04 billion.

The article was also incorrect in stating that the Long Baselines Neutrino Oscillation Experiment will send neutrinos through a 250-kilometre underground tunnel; neutrinos can pass through the Earth without the help of a tunnel.