With modern GPS, we often don’t think too hard about how to navigate, but GPS does not work very well on the open sea. That ...

Earth’s magnetic north is not static. Like an anchorless buoy pushed by ocean waves, the magnetic field is constantly on the move as liquid iron sloshes around in the planet’s outer core.

A trough extends from the North West district through central and southeastern ... showers and gusty winds in the southeast of the state over the weekend. A weak equatorial trough may form over the ...