What are the biggest conspiracy theories about Australia?

The theory: foreign intelligence agencies engineered the removal of the Whitlam government. The documented facts are remarkable enough on their own — a Governor-General dismissed an elected Prime Minister, and the 'Palace letters' released in 2020 after a long legal fight showed sustained correspondence with Buckingham Palace beforehand.

Serious historians still disagree about interpretation. That is a genuine live debate with primary sources, which makes it a good model for how to argue about contested history.

Australia's most-theorised facility. The acknowledged reality — a jointly operated satellite intelligence station near Alice Springs — is itself significant and has driven decades of parliamentary and academic scrutiny. The added claims about underground cities and non-human technology have no supporting evidence.

Claims that the 1996 massacre was staged to justify gun reform circulate persistently and are rejected by the coronial record, court proceedings and eyewitness testimony. This theory carries a real cost: it re-traumatises survivors and families for the sake of an argument that could be made honestly on policy grounds instead.

Australia's droughts and floods generate recurring claims about weather manipulation, usually pointed at cloud seeding or research facilities. Cloud seeding genuinely exists, is publicly licensed and produces modest, locally measurable effects. It cannot manufacture a continental drought.

A small population on a vast continent, a great deal of remote restricted land, and a political history with several genuinely strange episodes. Add distance from the northern-hemisphere media cycle and local rumours have room to grow undisturbed.

The useful habit is to separate the questions with documents behind them from the ones without. Australia offers plenty of the first kind.