Year: 306 CE
An asteroid named "Trent-653087" was predicted to pass by Yata within a week, with many anticipating the pass-by as a beautiful spectacle on the night sky, with the CSIS tracking its movements. Once the asteroid reached its closest point to Yata, shooting stars filled the night sky as small fragments (too small to be harmful) were pulled into Yata's gravity well, with these streaks of light filling up the night-sky with minimal incidents regarding collision avoidance systems in satellites, with the only notable occurrence being the communication satellite "Atlanta-3" going offline which was suspected to be because of an impact with one of the smaller meteorites. Suddenly, a large gas explosion ejected significant amounts of debris from the side of the asteroid, with scanners previously showing normal minerals now showing refined metals as the asteroid's trajectory changed to put it on a collision course with an uninhabited part of Luna's surface where it could damage no bases. The CSIS decided to go in and mine the iron detected in the asteroid, only for them to discover a unnatural belt of irradiated terrain extending over a 300 kilometre radius around the asteroid with the radiation (which was later marked as an exclusion zone) while the radiation levels beyond this radius jarringly cut off without any clear explanation, with their geiger counters reporting values jumping from already absurd numbers to higher and higher values to the point that travel deeper inwards became completely unbearable, prompting them to attempt using specially-protected robots to move in, only for these to also mysteriously lose contact when they began to near the impact site. As they were unable to approach closer than 270 kilometres to the impact site, the CSIS resorted to using high-power telescopes to view the site from afar, seeing the construct of refined alloys that was previously reported shattered on the ground. CSIS decided to try moving further by strapping a fusion reactor from a retired battlecruiser onto 3 remote-controlled rovers (with many others also being prepared) in order to advance further, which successfully advanced further than before until their visual feed cut off at a range of 240 kilometres from the impact site which forced them to use radar and other sensors. When they reached 220 kilometres away their radiation sensors began to shut down, when they reached 200 kilometres away their magnetic sensors began reporting odd readings, when they reached 190 kilometres away one of the robots shut off with another also shutting off at 160 kilometres away. When it reached 120 kilometres away the final robot made contact with the first set of debris, finding it to be consisting of seemingly normal iron and nickel which appeared not to have been radioactive prior to the impact, with the robot shortly afterwards having its arms malfunction before later shutting off as well, with attempts at using drop-pods from above also failing as the belt of radiation appeared to extend upwards from the impact site. Observatories on Yata's surface also began looking up at the impact site after a brief communications and sensor outage unfocused everything observing the impact site, discovering the deactivated rovers and drop pod approaching a damaged cylindrical structure roughly 100 metres long and 50 metres wide laying on its side.
The CSIS deployed the battlecruiser 'CSS Jupiter' (a 9 kilometre-long heavily armed and fast ship) which was used by the Department of Containing Anomalous Entities as a forward-operation-base in the study of the impact. The next major change was detected as 'spots' of abnormal radiation readings when compared to their surroundings which were gradually growing, which the CSIS tried to stop by dropping lead on the spots to absorb radiation which didn't do much initially other than kick up dust into the sky, which surprisingly managed to eventually start lowering radiation levels (especially chunks dropped at the impact site). The peripheral scanners began detecting increasing levels of radiation in their own area, predicting that the belt would slowly expand by 10 kilometres every day. A strange communication was detected by the CSIS which took 3 days to descrypt, reading;
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| Mission unsuccessful acknowledged. Possible negative interference acknowledged. Removal of cause of interference issued. Warning: Do not interrupt recovery and removal mission.
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The CSIS was puzzled and attempted to monitor for more messages to no avail, until all of the sudden all surveillance systems around Luna paused completely and became inoperable for a second until they reactivated, revealing a large black, metallic, cylindrical shape arriving on the far-side of Luna on a course towards the impact-site. The entire craft was oval in shape that was, one kilometre long, 300 metres wide, completely smooth on all sides without any ports or openings, and didn't emit any radiation. This vessel issued an unencrypted message;
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| Mission phase 2 initiating. Warning: Do not interrupt recovery and removal mission.
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The vessel began nearing the various CSIS ships parked in orbit observing the site and issued a message stating "Clear Area", repeating the message once the CSS Jupiter moved to intercept the vessel. As the CSS Jupiter was not deterred, the unknown craft repeated its 'warning' not to interrupt its mission now addressed directly to the CSS Jupiter, repeating this warning once more once the two entered a 5000 kilometre distance from one another. The CSS Jupiter tried to lock onto the craft with a tractor beam as detecting it with any other method than visual didn't work, only for a piece of the unknown vessel's hull to suddenly detach and accelerate into the source of the beam, destroying the tractor beam on impact while the piece itself seemingly evaporated without a trace. A similar message was once more repeated combining two of the prior warnings;
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| CSS Jupiter. Warning: Clear area immediately. Warning: Do not interrupt recovery and removal mission.
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The CSS Jupiter attempted to communicate with the ship by requesting that it identify itself and explain what it was recovering, which it ignored, so the Jupiter broke its approach and instead merely followed it. The radiation belt's radius expanded as the craft moved above the impact site and stood still, with its hull splitting in two across its entire length as thousands of small black objects which shared the same 'scan-blocking' technology the main craft possessed emerged and descended onto the impact site at the exact time that the radiation belt suddenly vanished, with these small objects forming a "living" black dome with a diameter of ~2 kilometres around the impact site. Another message was received;
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| Mission phase 2 complete. Mission phase 3 initiating. Warning: Do not interrupt recovery and removal mission
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The craft descended to Luna's surface and submerged itself within the dome, from which clusters of the small objects emerged to envelop and transport the rovers and dropship from earlier into the dome. After 3 hours, another message arrived;
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| Mission phase 3 complete. Mission phase 4 initiating. Warning: Do not interrupt recovery and removal mission
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Suddenly, the dome collapsed and splattered across the lunar surface and began spreading outwards which once more revealed the strange craft now hovering ~100 metres above the surface alongside a now completely spotless lunar landscape as if no impact had happened and no-one had been there. The ship ascended as the small objects had spread across a 300 kilometre radius before flying up back into the levitating craft in an asymmetric pattern, sealing the craft's hull back shut once they arrived. Another message arrived;
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| Mission phase 4 complete. Mission phase 5 commencing. Warning: Do not interrupt recovery and removal mission
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The craft began accelerating onto a trajectory which would bring it away from Yata and Luna into extrasolar space, prompting the CSS Jupiter to follow the vessel until eventually breaking off its approach while a smaller (~500 meter long) cloaked frigate kept pursuing the leaving ship. The frigate detected an accumulation of plasma which was followed by a small object being pushed out of the side of the craft which sent said small object into a trajectory that would lead it into Yata's orbit. Once this small object was 10 kilometres away, the plasma covering the aft of the ship spread to cover its entire surface originating from two points at the front and end of the vessel, with this dense plasma field obscuring it from any sensor readings, with this plasma gradually decaying over 2 minutes which revealed an asteroid nearly identical to Trent-653087 (named "New Trent") on the same trajectory. On Luna, 5 signals activated as the 4 rovers and dropship appeared to have been restored repaired and intact albeit with completely wiped harddrives. The Surface of Luna was reverted back to normal with no debris, radiation or signs of anything happening aside from a crater identical to all of the others on Luna's surface now being in the impact-site, which prompted the CSIS tro set up surveillance satellites around Luna to monitor it. Drilling and analysing 'New Trent' revealed that it was composed of the same materials as any other asteroid would be, with this discovery being followed by another communication without a known source which a decryption AI took 6 hours to decrypt, revealing the following;
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| Mission phase 5 complete. Recovery and removal mission fully completed. Negative interference reverted.
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Following this, no further information regarding the incident seemed to be available aside from the small object that the craft had dropped off during its exit being identified as the Atlanta-3 satellite, at least for now.
