Glenn writes a lot about satellites and space: links
I've developed an obsession with space in the last couple of years, particularly with satellites, probes, landers, rovers, and other gadgets that we send into it. When I was a kid, I used to read and dream about space, but wandered off into other meadows. Returning to it is a blast (sorry) as my decades studying, working with, and reporting with technology gives me an entrée into the world (or worlds) of mission planning, launches, travel, landing, and deployment.

Here's a collection of what I've been writing about, largely at the Economist.
Voyager 1 & 2
The Voyagers continue to function nearly four decades after launch, delivering useful science. Most recently, Voyager 1 passed the edge of the solar magnetic bubble (the heliosphere), crossing the heliopause into the interstellar medium! (It's still within the solar system, as defined by the sun's gravitational