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Instructors have said delays in booking their own exams, "astronomical" costs and a "convoluted" testing process are deterring people from the industry.

Some of these are in the remote, austere sites that often serve as ideal sites for astronomical observatories.

Buying or renting a home has become unaffordable for the average Australian, driven by a perfect storm of astronomical house prices, relentless rental increases and a lack of social housing.

The night sky as viewed from anywhere on Earth could become several times brighter, perhaps even too bright for astronomical observations to be made at all.

The show also follows the astronomical rise of the Tejano music star and the abrupt end to her life.