NASA Discovers a Long-Sought Global Electric Field on Earth

Varying electric and magnetic fields are coupled (to form electromagnetic radiation). Static electric and magnetic fields can exist separately.

A permanent magnet produces magnetic field, but not electric field (unless it's electrically charged, but that's usually not the case), so no, magnetic field doesn't automatically imply electric field (charge).

per Faraday's law, a moving magnetic field implies an electric field

We might need some superconductors to make use of a voltage that low across distances that great. But we have been making progress on higher-temperature superconductors....

Still, don't hold your breath. We have this awesome geothermal temperature gradient, with hot rocks underneath us if we just dig down a few kilometers, occasionally less. Unfortunately, it's only cost effective to use in a rare few places.

That's not the launch rail exploding, it's a styrofoam box that is built around a portion of the rocket as insulation. The payload was under a warm dry nitrogen purge before launch to keep certain components in good shape. The styrofoam is colored black so that the chunks can be easily collected from the snow.