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Scientists at Nagoya University in Japan claim to have discovered dark matter that is 12 billion years old.
Their findings are detailed in a paper published in the journal Physical Review Letters.
Dark matter was only observed for ten billion years. The light was not strong enough to be seen.
Dark matter is around distant galaxies. It was a crazy idea according to study co-author Masami Ouchi. No one knew we could do this.
Around 85% of the universe is dark matter. It's one of the most difficult mysteries to detect in modern physics.
Scientists use a type of telescope called a natural telescope, which distorts nearby light into a kind of natural telescope, to look across the universe.
The light of older galaxies can be seen through thelens galaxies. The more dark matter there is, the more distortion it can cause.
The Cosmic Microwave Background (CMB), remnants of the oldest observable light in the Universe, were used by the scientists to find answers.
The team used the data of 1.5 million lens galaxies in visible light and the European Space Agency's Planck satellite to measure exactly how dark matter distorted the CMB.
The scientists were able to see the distribution of dark matter 1.7 billion years after the creation of the Universe. The universe is thought to be around 13 billion years old.
They found that the dark matter was not as clumpy as was thought by the broadly accepted Lambda Cold Dark Matter model.
More work needs to be done to confirm the conclusions.
The leader of the study said that their finding was still uncertain. If it is true, it would suggest that the whole model is flawed as you go further back in time.
A scientist says that dark matter may be information.
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