To put this into perspective, the entire Milky Way galaxy is about 100,000 light-years wide.
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Normal matter that forms stars and galaxies contributes just 4.9 per cent and dark matter, of which little is understood, makes up 26.8 per cent, a fifth more than was previously thought. The new age of the universe was calculated from the rate at which it is expanding outwards, which turns out to be a little slower than previous estimates.
The maps have also thrown up unexpected results due to their extremely high precision which have scientists baffled.
Even today, most earthbound meteorites come from the swarm of debris created by this massive primeval collision.