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Universe is slowly dying but no need to panic yet, say Scientists
After analysing the data from nearly two lakh galaxies, an international team of astronomers has come to the conclusion that the universe is slowly dying and has remained only half what it was two billion years ago. But there is no need to panic as there is still about 100 billion years to go, said the researchers from the International Centre for Radio Astronomy Research (ICRAR) in Western Australia.
Sydney: After analysing the data from nearly two lakh galaxies, an international team of astronomers has come to the conclusion that the universe is slowly dying and has remained only half what it was two billion years ago. But there is no need to panic as there is still about 100 billion years to go, said the researchers from the International Centre for Radio Astronomy Research (ICRAR) in Western Australia.
The survey data, released to astronomers around the world, includes 200,000 galaxies each measured at 21 wavelengths from the ultraviolet to the far infrared and will help scientists better understand how different types of galaxies form. The study set out to map and model all of the energy generated within a set volume of space. All energy in the Universe was created in the Big Bang with some portion locked up as mass.
Stars shine by converting this mass into energy as described by Einstein's famous equation E=MC2. This newly released energy is either absorbed by dust as it travels through the host galaxy, or escapes into intergalactic space and travels until it hits something such as another star, planet, or very occasionally a telescope mirror. The fact that the universe is slowly fading has been known since the late 1990s.
This work shows that it is happening across all wavelengths from the ultraviolet to the infrared, representing the most comprehensive assessment of the energy output of the nearby universe. The team of researchers hope to expand the work to map energy production over the entire history of the universe.
