Could Dark Matter Be a Source of Light In the Universe?

"Chaos" --Our Spinning Cosmos May Be Losing Its Structure, Becoming More Disorderly

 

All the light in the observable universe provides about as much illumination as a 60-watt bulb seen from 2.5 miles away. And all the energy ever radiated by all the stars that ever existed is still with us, filling the universe with a sort of fog, a sea of photons known as the extragalactic background light.

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Building Blocks for Life Found at Milky Way’s Center to Does Light Live Forever? (The Galaxy Report Weekend)

ESO Observatories

 

This weekend’s stories range from Signals From Deep Space Contain Signs of New Physics to How to Follow the Webb’s Next Steps to Dark Galaxies Swarmed in the Early Universe, and much more.

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Super Earths Could Be Habitable for 80 Billion Years (The Galaxy Report)

ESO Observatories

 

Today’s stories range from Pentagon creates Anomaly Resolution Office to Enceladus’s oceans may be the right saltiness to sustain life to LHCb Ramps Up the Search for Dark Photons, and much more.

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Scientists React to Webb’s 1st Images to Quantum Alien Signals (The Galaxy Report)

 

Alma Observatory

 

Today’s stories range from the headline to The Gaia Spacecraft has identified two giant new planets in the Milky Way to James Webb Space Telescope team quietly releases a picture of Jupiter to Building Blocks of RNA Spotted at the Center of the Milky Way to Dark Matter Doesn’t Exist, and much more.

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Beyond the Edge of the Milky Way: Giant Pulsating Stars Revealed an Enormous Halo of Dark Matter

Galaxy NGC 474

 

One early result of the 2nd release of the still ongoing Dark Energy Survey is the previously untold story revealed by old, giant RR Lyrae (RRL) pulsating stars with a mass of around half the sun’s, which tell scientists about the region of space beyond the edge of our Milky Way. These large-amplitude stars serve as tracers and distance indicators of old stellar populations in the Milky Way and neighboring galaxies. They are also essential laboratories for testing evolutionary and pulsation models.

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Andromeda’s Orbiting Dwarf Galaxies – “Point to Something Profound”

Andromeda Galaxy

 

A string of 13 dwarf galaxies in orbit around the massive galaxy Andromeda –remnants of the population of primordial structures that coalesced to form giant galaxies like the Milky Way–are spread across a flat plane more than one million light years wide and only 30,000 light years thick –a distance so vast that they have yet to complete a single orbit. The 2016 discovery suggests that conventional ideas regarding the formation of galaxies are missing something fundamental.

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