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Blogs > poles538 > blog requirements

dark matter  

poles538 80M
253 posts
3/16/2017 7:00 am
dark matter

At the peak of galaxy formation 10 billion years ago, there was far less dark matter in the universe, scientists have discovered. This means dark matter – the nature of which is still a mystery – was far less influential when the universe was in its infancy than it is today.

Dark matter makes up about 27% of the universe today. In comparison, normal matter (everything visible) makes up just 5%. The rest is dark energy – which we think is the force behind the expansion of the universe. We know dark matter is there because of the way galaxies rotate. They move at such fast speeds that without some invisible force holding them together, they would be<b> torn </font></b>apart.

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