Star Harvester

Ancient Times
In the time of the Dynasty of Primes, the seven leaders of the Transformers race sought to preserve their race by finding a sun capable of providing the Energon to power the Allspark. Once the order was given, several Seekers traveled far from Cybertron to seek out a target sun, and for several years they searched the galaxy for the one, but even in the vast expanse of space with the billions of stars littering the skies, one could not be found. That is, until one Seeker came upon a solar system orbiting a sun which is capable of creating Energon.

Once word got back, the Primes set out to this unknown world with an army of Constructicons and had them begin construction of a Solar Harvester. Once the machine was complete, the Dynasty were about to place the Matrix inside to activated it when to their surprise, a race of intelligent primitives approached the Transformers when they hunted a tiger. With this revelation the Primes did not turn the Harvester on, as it's existence violated their one rule when setting out; never destroy a sun if there was intelligent life present.

However, one of their number, who valued strength above all else, openly broke the pack and stole the Matrix of Leadership from the Primes. A great battle was fought between The Fallen and his turncoat followers, and the last six Primes. In the battle, the Primes fought to reach The Fallen to prevent him from activating the harvester, in which they had to contend with the Constructicons defending their creation. Once they reached The Fallen, they ambushed him, incapacitating him long enough for them to take back the Matrix and hide it.

After The Fallen was sealed away, Humanity would then build a pyramid over the deactivated Sun Harvester, forgotten but to those who remember.

Present Day
In the present, the new Decepticons launched an assault, and in that battle Megatron (Movie) ordered Devastator to disengage from the Twins to uncover the stone guarding the Sun Harvester. Once the top of the device was exposed, The Fallen took the Matrix one last time and used it to armed the machine. When the Human military turned their fore upon the machine and Megatron and The Fallen, the later used his telekinesis upon the Human army, lifting them upon the pyramids and casting the down, as well as creating a blockade of debris against several jets destroying at least one of them. Before it could fire, an augmented Optimus Prime broke past The Fallen's stone ring Blockade, tackled former Prime off the device and firing off one last critical shot, destroying the Solar Harvester, saving Humanity.

Currently, it is presumed that the Sun Harvester is being studied with the permission of the Egyptian government by Human and Autobot scientists. And as to the fate of the Matrix of Leadsership, although presumed destroyed in the explosion, it is likely to have survived considering the incredible condition is was found in, and the fact that is can reassemble itself. It would then most likely be in the hands of Optimus Prime if that was the case.