Events

Archeological Find
{In-game text}: [Ancient artifacts of significant import have been discovered near. A vessel have been dispatches to to commence research at the science center.]
 * Prices Up: None
 * Prices Down: Intellectual Property, Alien Artifacts, Religious Tracts
 * Special: Spawns a Treasure Ship, which slowly travels to another station. When it arrives, a Tech Boom will begin. Destroying the Treasure Ship will prevent the Tech Boom. Also the ship carries large quantity of Alien Artifacts which can be extorted from the pilot or taken when you destroy the ship.

Arms Race
{Ingame text}:[]
 * Prices Up: Ceramic Plating, Robots, Munitions, Nuts and Bolts
 * Prices Down: None
 * Special: Spawns a Treaty Ship at another station, which slowly travels toward this one. When it arrives, it will end the Arms Race. Destroying the Treaty Ship will prolong the Arms Race.

Convoy Inbound
{Ingame text}:[A massive convoy has left laden with trade commodities. If it reaches, economists predict low prices on goods.]
 * Prices Up: None
 * Prices Down: None
 * Special: Spawns a convoy at another station, which slowly travels towards this one. When it arrives, a Market Glut event will begin. Destroying the convoy will prevent the Market Glut.

Crime Wave
{Ingame text}:[Crime and Anarchy reign in. Pirates control the Station!]
 * Prices Up: None
 * Prices Down: Live Organs, Space Slaves, Bio Waste
 * Special: Spawns a blockade of Red Devil Cartel ships surrounding the station, which will fire on approaching Citizenry. Destroying the pirate ships will end the Crime Wave.

Economic Boom

 * Prices Up: Data Cubes, Robots, Ceramic Plating, Intellectual Property, Nano-Fibers
 * Prices Down: Nuts and Bolts, Tachyon Salt
 * Prices Change In Some Direction, But Not Very Much, So It's Hard To Tell Which: Yikyak Meat, Pure Water, Greel Whiskey, Designer Clothes

Famine
{Ingame text}:[Famine has struck .Relief vessels have been dispatched from ]
 * Prices Up: Soy Paste, Yikyak Meat.
 * Prices Down: Space Slaves
 * Special: Spawns a Relief Ship at another station, which slowly travels to this one. When the Relief Ship arrives, the Famine ends. Destroying the Relief Ship will prolong the Famine.

Huge Celebration
{Ingame text}:[]
 * Prices Up: Narco-Cola, Designer Clothes, Meteoric Diamonds, Greel Whiskey
 * Prices Down: Tachyon Salt

Korian Invasion
{Ingame text}:[A Korian Invasion Force is headed towards. If it is not stopped before arrival it will lead to a siege, cutting off trade. Markets are responding with increased demand.]
 * Prices Up: None
 * Prices Down: All!
 * Special: Spawns a fleet of Korian Outsiders moving towards this station, led by a flagship with a sizable bounty. When they arrive, they will begin a Korian Siege. Destroying the flagship will end the invasion and avert the siege.

Korian Siege
{Ingame text}:[Korian forces are beseiging. Commodity Markets are closed to all trade. Kill the Korian Invader and escorts to route the siege.]
 * Prices Up: N/A
 * Prices Down: N/A
 * Special: The fleet spawned by the preceding Korian Invasion lays siege to the station. The station will neither buy nor sell commodities until the siege ends. Destroying the flagship will break the siege.

Market Glut
{Ingame text}:[ is experiencing a market glut, with an over-supply of many commodities]
 * Prices Up: None
 * Prices Down: Munitions, Yikyak Meat, Tachyon Salt, Gold Ingots, Nuts and Bolts, Metallic Ores, Ceramic Plating, Data Cubes, Robots, Intellectual Property, Nano-Fibers, Obtainium, Designer Clothes, Meteoric Diamonds, Greel Whiskey, Pure Water

Militia Embargo
{Ingame text}:[] Militia Embargo Broken: Trade and commodity prices have returned to normal.
 * Prices Up: All
 * Prices Down: None
 * Special: Spawns a fleet of Militia ships blockading the station, which will fire on any approaching ships, regardless of faction standings.
 * Note: If the station is hostile to you, it will not allow you to dock and its defenses will fire at you. If the station is neutral or friendly, only the militia ships will fire at you.

Mining Rush
{Ingame text}:[A mining claim near has yielded a wealth of valuable minerals and metals.]
 * Prices Up: Space Slaves
 * Prices Down: Metallic Ores, Obtainium, Gold Ingots, Meteoric Diamonds

Pirate Lord Sighted
{Ingame text}:[]
 * Prices Up: None
 * Prices Down: None
 * Special: Spawns a Pirate Lord near the station, heading towards another station. Pirate Lords command powerful ships, have very large bounties, and will drop cargo containers containing rare or unique weapons when destroyed.

Tech Boom
{Ingame text}:[A scientific boom on has resulted in a surplus of high-quality tech gear.]
 * Prices Up: Intellectual Property
 * Prices Down: Ceramic Plating, Data Cubes, Robots, Nano-Fibers

War
Big cash for Bio Waste.

{In-game text}:[War has struck. A treaty delegation has set off from to broker peace. (Looking for a place to get unload your Bio Waste? This is it!)] War ended: [example: resulted in famine]


 * Prices Up: Munitions, Nuts and Bolts, Robots, Bio-Waste
 * Prices Down: None
 * Special: Spawns a Treaty Ship at another station, which slowly travels to this one. When the Treaty Ship arrives, the War ends. Destroying the Treaty Ship will prolong the War.
 * Note: This event has no effect on surrounding space other than spawning the Treaty Ship. The war in question is occurring on the planet's surface, not in space.

Source: Galle_'s post on r/RebelGalaxy