Dark matter

Could dark matter be roving cosmic gas clouds? Flickering quasars revive old theory of cosmic mystery

The blink of distant quasars may hint at one of the cosmos’s big mysteries.
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Mysterious rivers between the stars mapped for the first time

Map of the cosmos ‘sees’ dark Universe

Scientists have released the most accurate map to date of the structure of dark matter in the Universe, supporting the theory that dark energy and dark matter make up most of the cosmos.
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What is dark matter?

The Universe consists mostly of the unknown substances dark matter and dark energy, but what exactly are they?
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Dark matter left early galaxies alone

Early spiral galaxies spun much slower than those in the current Universe, implying that dark matter did not dominate their mass at these times.
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Galaxy found that is 99.99% dark matter

The exact nature of the elusive substance known as dark matter remains a mystery, but observations of massive cosmic structures may hold the key. The latest discovery is a galaxy that consists almost entirely of dark matter.
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Universe is expanding faster than expected

The Hubble Space Telescope has revealed that the modern Universe is expanding at a faster rate than it did shortly after the Big Bang.
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Dark matter map reveals early Universe history

A new survey mapping dark matter is giving astronomers the techniques to understand more about dark energy and its role in the expansion of the Universe.
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Black holes could be ideal dark matter labs

The gamma rays produced when dark matter particles collide are rare and difficult to observe. A new NASA simulation shows how the power of black holes could provide conditions for greater detection.
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Dark matter: the plot thickens

Mysterious substance that doesn't interact with light doesn't interact with itself, either
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