Japan's Mars moon sample-return mission marks a significant space exploration milestone.
Context
What happened: Japan launched a spacecraft to Phobos, the larger of Mars' two moons, on a five-year mission that will attempt to land a robotic prospector and a rover and bring back soil samples.
Key numbers: Five space agencies have joined forces for the five-year mission.
Why it matters: The mission is a joint effort by five of the world's space agencies to land on Phobos and return soil samples.
Coverage: 7 outlets in 24h
What changed
Japan launched a spacecraft to Phobos, the larger of Mars' two moons, on a five-year mission that will attempt to land a robotic prospector and a rover and bring back soil samples.