The Universe is slowly dying, according to astronomers who have made a study of the fall in energy levels resulting from the fusion of matter taking place in the nuclear furnaces of the stars of more than 200,000 galaxies.
A wide-spectrum survey of the galaxies has revealed the precise levels of energy generated within an immense segment of space and found that it is only half of what it was 2bn years ago – and that it is continuing to fade.
Previous work had already discovered that the conversion of matter to energy in the cosmos was declining but this is the most detailed survey to date of the sky across a wide range of light wavelengths, astronomers said.
Researchers from the International Centre for Radio Astronomy Research (ICRAR) in Western Australia used seven of the world’s most powerful telescopes to observe galaxies at 21 different wavelengths of light, from the far ultraviolet to the far infrared – the most comprehensive audit of the energy output of a nearby part of the Universe.
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