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

 

ESO Observatories Chile

 

(more…)

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.

(more…)

Last Week’s Top 5 Space & Science Headlines

ESO Observatories Chile

(more…)

NASA Hubble Team –“Finds 1st Evidence for Cold Dark Matter Theory”

Cold Dark Matter Clump

 

Although the type of particle that makes up dark matter is still a mystery, a NASA team using the Hubble Space Telescope has made a very compelling observational test for the cold dark matter model that passes “with flying colors,” said Tommaso Treu of the University of California, Los Angeles (UCLA), a member of NASA’s team who used a new “cosmic magnifying glasses” technique that found that dark matter forms much smaller clumps (image above) than previously known, confirming one of the fundamental predictions of the widely accepted “cold dark matter” theory.

(more…)

The Galaxy Report –“Giant Blobs Deep in Earth Influence Mass-Extinctions to Strange Dark Matter Discovery”

 

ESO Observatories Chile

 

Today’s “Galaxy Report” connects you to headline news on the science, technology, discoveries, people and events changing our knowledge of the Milky Way and the Universe beyond.

(more…)

“The Galaxy That Revealed Dark Matter” –A ‘Sleeping Monster’ 2.5 Times Width of the Milky Way

Rubin's Galaxy

 

On a gorgeous clear night in 1968 at the Kitt Peak Observatory in the mountains of southern Arizona, astronomer Vera Rubin discovered the existence of dark matter by closely observing the spectra of stars in the Andromeda Galaxy to determine their velocities along with her her colleague, Kent Ford, to calculate how fast the galaxy’s stars rotate around its center.

(more…)