At 3:41 p.m. ET today (Oct 19), Japan's H3 rocket lifted off from Tanegashima right on schedule — and a little over an hour later, the MMX spacecraft separated clean and is on its way to Mars' moon Phobos. This morning's launch-day preview ended on a caution: a scheduled launch is a promise, not a result. The promise held. The most powerful variant of Japan's H3 — the H3-24L, flying as flight F10 from the LA-Y2 pad at Tanegashima Space Center — carried JAXA's Martian Moons eX