Thargoid Sensor
Introduction
The Thargoid Sensors have been reported to look like it's made from sentient life, far beyond what we humans are capable of creating. Some people are speculating this is works of Thargoids, who haven't been seen since their disappearance. It is incredibly rare and only a few pilots have been able to see one themselves, thus being able to sell it for a huge reward.
Finding them
These Thargoid Sensors can be found in Strong Signal Sources. Timocani and 109 Virginis are the only two systems confirmed to spawn them, but Michael Brookes has stated that they are 'exceedingly rare' and that they are only available in certain regions of the galaxy, which would suggest that they are in other systems too. Since 1.3 no new UAs have been found.
One of the original finders gives this advice:
"Fly into a system or launch from a station. Select the nearest object be it a station of a star. Enter supercruise if not already in it. Fly away from targeted object till your identifier in the bottom left corner of your hud changed from the target area and reads deep space. (this is around 1000 LS). That is the key (Deep Space). Then reduce your speed to minimum. Wait for the SSS (strong signal sauces to appear). When you enter one, if the contacts have a type 9 and anacondas in it, check the local chat. If they are talking back and forth saying the object is spooky ect,, (you will know when you see it as it very obvious). If you have a cargo scanner scan the type 9 and it will be there if it is anywhere. Note:- If no chatter then no UA."
There are two ways to get the UA from the T9, through patience or by force. The UA eats its way out of the ship holding it by degrading the cargo hatch (and other modules) over time, so in some cases it will just drop out into space in front of you. However, sometimes the T9 will jump out before this happens, so you also have option 2.
The mystery of the Unknown Artifact
There is apparently some kind of mystery to be solved around these items, and certain people close to Frontier Developments have said that there are clues in the game, but nobody has spotted them yet. They even went as far to say that they are so obvious that to give any more clues would make it too easy. Despite this, noone has solved the mystery to date.
Timeline of possible clues
10 February: Soontill Alien Artifacts are mentioned in Galnet (link). Subsequently confirmed by FD that these Artifacts are not Unknown Artifacts.
10 March: 1.2 is released. Includes "- Adding valuable salvage convoys to three permitted systems: LFT 509, Isinor, Witch's Reach"
13 March: The UA appeared for the first time as cargo on board the ship in the Wings trailer (link)
28 April: Michael Brookes comes into this forum thread and says "Have you listened to them?"
29 April: MB confirms later in the same thread that Soontill relics are not the same thing as UA's, and that UAs cannot be bought
30 April: Strange parasite that attaches to a nervous system is reported in Galnet, but seems to have been subsequently removed (link)
02 May: MB says that they are "exceedingly rare [sic] and can only be found within a certain region of space - that does include multiple systems though." and then later clarifies that they can only be found in "certain regions in the galaxy"
02 May: Senator Kahina Tijani Loren’s Imperial Courier undergoes significant refit (link)
04 May: Wishblend finds the first UA in 109 Virginis, but unfortunately doesn't get it. Henceforth officially celebrated as UA Day across the galaxy. That afternoon, a further number were spotted but RedWizzard finally managed to actually grab one in Timocani. Due to a bug a couple more were duplicated. They were spawning a lot that day, for sure.
06 May: President Halsey's tour of the frontier announced (link)
13 May: President Halsey sets off from Sol (link)
17 May: Kahina Tijani has an advanced scanner fitted to her ship (link)
26 May: Halsey's Starflight One goes missing (link)
27 May: Report on what happened to SSOne (link)
28/29 May: Conspiracy theories abound (link)
02 June: Hudson becomes president.
22 June: Mahddogg publishes his panel discussion about Powerplay, in which CMDR Kerrash mentions that 'there is definitely still something to discover related to the UAs but he can't say what it is" and that "FD feel that they have given enough clues and any more would be giving it away"
List of tests and theories already tried
[to be updated]