5. What Is Light?

2004

13 July 2004. Will Compasses Point South?. By WILLIAM J. BROAD -- The Earth's magnetic field is collapsing and may eventually reappear with opposite polarity. But what effect will that have on us?

2003

3 December 2003. CRACKS IN THE EARTH'S MAGNETIC SHIELD - California-sized cracks in our planet's magnetic field can remain open for hours, allowing the solar wind to gush through and power stormy space weather--this according to new observations from Earth-orbiting satellites.

TOP