Added some more letters.

Defs/Research/Hyper Alloy.xml

@@ -8,6 +8,10 @@
         <baseCost>5500</baseCost>
         <techLevel>Ultra</techLevel>
         <tab>Antimatter</tab>
+        <discoveredLetterTitle>About hyper alloy</discoveredLetterTitle>
+        <discoveredLetterText>Your research has lead you to the discovery of Hyper Alloy, an alloy of gold, uranium and antimatter composite.
+Data suggests that it will have incredible properties that would make it far superior to any alternative in terms of strength and versatility.
+In order to manufacture it, a special facility will be needed.</discoveredLetterText>
         <requiredResearchBuilding>HiTechResearchBench</requiredResearchBuilding>
         <requiredResearchFacilities>
             <li>MultiAnalyzer</li>

Defs/Research/Hyper Components.xml

@@ -4,11 +4,16 @@
     <ResearchProjectDef>
         <defName>R_HyperComponents_AA</defName>
         <label>hyper components</label>
-        <description>Of all the data grabbed in the initial Ultratech hack, the data about Hyper Components may be the most interesting and confusing.
-Hyper components appear to combine antimatter and archotech technology, but you don't quite understand how. It is obvious that crafting these components will be impossible, but you might be able to use them if you somehow get your hands on them.
+        <description>Investigate the uses of Hyper Components.
+Hyper components combine antimatter and archotech technology, but you don't quite understand how. Crafting these components will be impossible, but you might be able to use them if you somehow get your hands on them.
 The Ultratech faction may have some, but they won't give them up voluntarily...</description>
         <baseCost>3300</baseCost>
         <techLevel>Ultra</techLevel>
+        <discoveredLetterTitle>Hyper components</discoveredLetterTitle>
+        <discoveredLetterText>You have now analyzed the data on Hyper Components.
+You can use Hyper Components to build the most advanced defenses and production facilites, but you will have to steal them off the Ultratech faction.
+
+Ultratech raiders will ocasionally carry them, and you can also attack Ultratech bases to find more hyper components.</discoveredLetterText>
         <tab>Antimatter</tab>
         <requiredResearchBuilding>HiTechResearchBench</requiredResearchBuilding>
         <requiredResearchFacilities>

Defs/Research/Megumin Research.xml

@@ -10,6 +10,10 @@ Hyper components will be required to create and maintain an AT field going from
         <techLevel>Ultra</techLevel>
         <tab>Antimatter</tab>
         <requiredResearchBuilding>HiTechResearchBench</requiredResearchBuilding>
+        <discoveredLetterTitle>M3G_UMIN</discoveredLetterTitle>
+        <discoveredLetterText>You can now construct the M3G_UMIN, once you aquire enough Hyper Components.
+The M3G_UMIN will not automatically attack enemies, because it is too destructive. It uses antimatter canisters to fire, and has a very long cooldown.
+Don't target anything near something you care about loosing!</discoveredLetterText>
         <requiredResearchFacilities>
             <li>MultiAnalyzer</li>
         </requiredResearchFacilities>

Defs/Research/Railgun.xml

@@ -8,6 +8,11 @@
         <baseCost>4200</baseCost>
         <techLevel>Ultra</techLevel>
         <tab>Antimatter</tab>
+        <discoveredLetterTitle>Antimatter railgun</discoveredLetterTitle>
+        <discoveredLetterText>You now understand how to construct antimatter railguns.
+Antimatter railguns make convential projectile launchers seem primitive. They fire antimatter channeled through an AT field, giving it a theoretically infinite range and dealing massive damage in the impact area.
+
+You will need to aquire Hyper Components to build them.</discoveredLetterText>
         <requiredResearchBuilding>HiTechResearchBench</requiredResearchBuilding>
         <requiredResearchFacilities>
             <li>MultiAnalyzer</li>

Defs/Research/Reactor.xml

@@ -8,6 +8,10 @@
         <baseCost>3600</baseCost>
         <techLevel>Spacer</techLevel>
         <tab>Antimatter</tab>
+        <discoveredLetterTitle>About the antimatter reactor</discoveredLetterTitle>
+        <discoveredLetterText>You can now construct an antimatter reactor, but setting it up correctly is a little tricky.
+The reactor itself is very large and requires additional space around it for an injector and a power converter. Remember that the reactor can be rotated to suit your preferences.
+See the in-game wiki page for exact instructions on how to set up.</discoveredLetterText>
         <requiredResearchBuilding>HiTechResearchBench</requiredResearchBuilding>
         <requiredResearchFacilities>
             <li>MultiAnalyzer</li>