Operation and use
Platform One was capable of berthing several shuttles. It used sun filters to shield it from the heat of the sun and a force field to protect it from external forces. The shafts carried hot water, could be blocked and — depending on the area of the blockage — a suite could be left without hot water.
In the year 5,000,000,000, when the gravity satellites could no longer be funded to hold back the expansion of the sun towards the Earth, an event was held, sponsored by the Face of Boe, for the richest people to observe the destruction of the Earth.
During the event, Lady Cassandra gifted metal spiders through the Adherents of the Repeated Meme to infiltrate Platform One and profit from the compensation from a faked hostage crisis. The Ninth Doctor and Jabe thwarted this plan, so Cassandra fell on her back-up plan: to teleport away and deactivate the protective shielding on Platform One with her spiders, profiting from the shares of the doomed guests' rivals. The Doctor and Jabe rebooted the shields at the cost of Jabe's life, and Cassandra's teleport was reversed, causing her skin graft to break apart due to Cassandra's surgeons not being present to keep her moisturised. (TV: The End of the World) Her brain survived, however. (TV: New Earth)