Last Week’s Top 5 Space & Science Headlines –“Spacetime Magic to The 1.8 Gigayear Planet”

 

ESO Observatories

 

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“Newton’s Gravity?” — A Universe Without Dark Matter

Galaxy without Dark Matter

 

Scientists have yet to crack the enduring mystery of dark matter, but conjectures vary from suggesting that it may be older than the Big Bang to particles the size of galaxies to highly-speculative dark-matter life, consistent with the known laws of the universe. Now, researchers from the Universities of Bonn and Strasbourg have simulated the formation of galaxies in a universe without dark matter.

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Last Week’s Top 5 Space & Science Headlines –“Quantum ‘Gates of Hell’ to Star the Size of Our Solar System”

 

Observatory at Night

 

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The Galaxy Report –“Deadly Deep-Earth Blobs 100 Times Height of Everest to Death on Mars”

 

LaSilla Observatory Chile

 

“The Galaxy Report” provides paragraph-length summaries of headline news by leading science journalists about the amazing discoveries, technology, people, and events changing our knowledge of Planet Earth and the Cosmos beyond. Our caffine-inspired curation team scours the world, doing your work for you –all in one place.

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Last Week’s Top 5 Space & Science Headlines –“We’ve No Idea What’s Out There to Planet-Sized Dark Matter”

 

ESO Observatories Chile

 

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Dark Matter Particles the Size of Planets? –“Yes” Say ‘Cold-Model’ Physicists

Cold Dark Matter Halo

 

“At first, we thought it was absurd. How else could you respond to the idea that black holes generate swirling clouds of planet-sized particles that could be the dark matter thought to hold galaxies together? We tend to think about particles as being tiny but, theoretically, there is no reason they can’t be as big as a galaxy,” said theoretical physicist Asimina Arvanitaki, at the Perimeter Institute for Theoretical Physics referring to the heated debate about the standard model for dark matter that proposes that it is ‘cold,’ meaning that the particles move slowly compared to the speed of light which is tied to the mass of dark matter particles. The lower the mass of the particle, the ‘warmer’ it is and the faster it will move.

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