Kronosphere

"Can you move a bit to the right while I press this button that leads you to your doom? Thanks!"

The Kronosphere was a device of Decepticon design which is actually a time machine, though a funny looking one.

It had an automatic recall mechanism allowing it to bring back anything it sent through time.

Fiction

The Transformers cartoon

The time machine was created by Shockwave under the orders of Megatron, who planned to use it to travel into Cybertron's past, where he would steal energon from earlier periods in Cybertronian history before the outbreak of the Great War, when the planet had plenty of energy for everyone.

Since the Aerialbots were making a nuisance of themselves to Decepticon operations on Earth, Megatron decided to dispose of them by sending them so far back in time that nothing existed, not even the galaxy itself. Starscream managed to lead the dumb bots into the machine, where they were supposed to be hopelessly lost in time. However, the Autobots attacked Megatron's base where Optimus Prime destroyed the Kronosphere controls, thus dumping the Aerialbots in Cybertron's Golden Age, 9 million years ago.

Once that was done, the Autobots attempted to repair the device in order to get the Aerialbots back to the present. While attempting to fix the machine, the Decepticons tried to get it back, as Megatron believed that it would be disastrous if the Autobots made use of the Kronosphere. Which they were successful in doing. Good timing too, as the Autobots needed Superion to fight a repaired Guardian robot that the Decepticons had fixed and set loose on the Autobots.

The Kronosphere was subsequently destroyed. War Dawn

Binaltech

In the year 2005, the time-tossed Decepticon Ravage scavenged the shattered remains of the Kronosphere and rebuilt it, seeking to use its power to alter the flow of history. In the midst of the decisive battle between Optimus Prime and Megatron's forces, Ravage struck, using the Kronosphere to transport Megatron and many of the Decepticons outside of space and time. In doing so, Ravage altered the timeline, leaving the victorious Autobots to face the looming threat of Unicron alone, after which Ravage would bring Megatron and his army back, allowing them to easily crush the weakened Autobots. Changing Lanes

The original timeline was later restored thanks to the efforts of a mysterious entity from the far future, but the "Binal-Time" timeline created by Ravage's tampering was also preserved as its own alternate universe. Binal Time

Games

The Transformers (PS2)

Optimus Prime was reminded of the Kronosphere when a trio of Autobots claimed to be from the future to prevent a disaster from occurring. Knowing time travel was possible, he chose to believe their story. The Transformers

Notes

Foreign names

• Japanese: Time machine, Krono Sphere (クロノ・スフィア Kurono Sufia)