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X-rays

The portion of the electromagnetic spectrum that has a very short wave length. It has a wavelength longer than gamma rays, yet shorter than visible light. X-rays can penetrate various thicknesses of all solids, and when absorbed by a gas, can result in ionization.

Xenon

An inert gas that occurs at extremely low concentration in the atmosphere.

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Weather News

Much needed rain for Perth

13:22 EST

A complex low pressure system and cold front are affecting the southwestern parts of the country in coming days, leading to some welcome if gusty showers over Perth.

Records smashed under summer-like heat

11:55 EST

Over 100 different stations have had their hottest September day or night in at least a decade, including new state records in New South Wales and Victoria.

Bushfire fears as southern Queensland faces significant fire risk over the weekend

17:13 EST

Southern Queensland is in the grip of hot and dry conditions which prompted major fears for significant bushfires over the weekend.