"I saw it... a big crater, a perfectly round depression."
Two hours after the explosion.
While the base bustled with discussions about GW180509, America's third discovery of the M signal, and United Mining celebrating its first test detonation, astronauts working on lunar development were still carrying out their duties.
The Black Rabbit Space Station had already flown over the blast zone, observing the lunar surface after the explosion through a telescope.
This large Lunar Orbital Station was conveniently on the far side at the time of the nuclear blast, avoiding over 95% of the impact, suffering only a few tens of minutes of communication interruption due to the electromagnetic pulse; the rest of its functions were operating well with no anomalies detected.
However, by the time they orbited to this location, the moon dust ejected by the explosion still existed, expanding outward at a huge initial velocity.