While Americans' obsession with presidential politics gains momentum for 2020, other less earthly developments are underway with serious implications for long-term national security.
They involve space, what President Donald Trump calls "a new war-fighting domain." And what appears to be a growing militarization beyond the Earth's atmosphere, including missiles based in space.
Last week, Trump signed a memo putting into motion the creation of a new Space Force that will be part of the Air Force.
