Historically, the Spheriums’ homeworld had limited energy resources. As their civilization expanded, their demand for energy to support their lifeforms, habitats, and infrastructure grew as well.
In response, they began seeking out other planets from which they could harvest core energy and transmit it back to their homeworld. Although the Spheriums have established small colonies on other planets to maintain the energy transmitters, they are not fond of the idea of inhabiting other vast worlds, preferring to remain connected to their own homeworld.
As a result, the Spheriums have built colossal Interstellar Energy Transmitter towers that transform a planet’s core energy into a highly refined beam of pure energy, which is then transmitted back to their homeworld.
Should these energy transmitters cease to function, a catastrophic chain reaction would ensue on the Spheriums’ homeworld, threatening their civilization with the possibility of rapid extinction.