Axos was a space scavenger. Axos first appeared on Earth as a group of golden humanoids, who claimed to be the sole
survivors of a world draimed of energy by solar flares. Later, they were revealed to be tentacled monsters, members
of a single collective intelligence which included their ship and Axonite. Axonite is the very substance of Axos.
The Axons offered it to Mankind claiming that it would absorb, convert and transmit all forms of energy. In reality,
if it had reached its Nutrition Cycle seventy-two hours later, it would have drained Earth of all its energy. Axos
also tried to force the Doctor to give it the secret of time travel. It was eventually trapped in a time loop thanks
to the combined efforts of the Doctor and the Master