If there is one thing ’90s kids were taught, it is that the Earth was always five plastic straws away from complete collapse. I say this as someone who has deep, unreasonable, probably medically ...

Cartoon of the Earth with cutaway showing the mantle and inner and outer core. Magnetic field lines produced by the geodynamo extend into space and interact with the solar wind. The iron-rich core at ...

Cartoon cross section of the Earth showing the mantle, outer core and inner core. Convection in the outer core produces Earth's geomagnetic field. The properties of Earth’s iron-rich core are key to ...

Add Yahoo as a preferred source to see more of our stories on Google. If there is one thing '90s kids were taught, it is that the Earth was always five plastic straws away from complete collapse. I ...