Hubble’s Paradox –“Constant in Space, Not in Time”

Early Quasars

 

“While the Hubble Constant is constant everywhere in space at a given time, it is not constant in time.” explains Chris Fassnacht, professor of physics at UC Davis about the current crisis in cosmology, or “tension”, in understanding the rate of expansion of the universe —known as the “Hubble Constant”—since the Big Bang, a central part of the quest to discover the origins of the universe.

(more…)

“Fireflies of the Big Bang” –Did Primordial Black Holes Create Dark Matter?

Early Stars Hubble

 

“The really exciting thing about primordial black holes is that there are so many mysteries that in principle they could explain,” says Stephen Hawking’s colleague, physicist Bernard Carr. “Not the least of them being the existence of dark matter and dark energy.” (more…)

“Up to Thousands of Years” –Circuits of Stars Orbiting Supermassive Black Holes

UCLA Stars orbiting Black Hole

 

At the center of the galaxy, millions of stars whirl in orbits around a supermassive black hole that can take anywhere from a few hours for stars close to the event horizon of the black hole to thousands of years for their distant neighbors, according to a new study that included scientists at the Institute for Advanced Study. The nature of the dance—how the stars interact collectively through their gravitational forces—can vary from galaxy to galaxy.

(more…)

The Galaxy Report –“2019 Nobel Prize Astronomer ‘Aliens Detected Within 30 Years’ to Milky Way Mystery”

 

ESO Observatories Chile

 

“The Galaxy Report” connects you to headline news on the science, technology, discoveries, people and events changing our knowledge of our Galaxy and beyond.

(more…)

The Galaxy Report –“Matter’s Missing Building Block to New Tech Searches for Intelligent Life”

Milky Way Galaxy

 

“The Galaxy Report” connects you to headline news on the science, technology, discoveries, people and events changing our knowledge of our Galaxy and beyond.

(more…)

“Fuzzy” —The Dark Matter Backbone of the Universe

Fuzzy Dark Matter

 

“The first galaxies in the early universe may illuminate what type of dark matter we have today,” says Mark Vogelsberger, associate professor of physics in MIT’s Kavli Institute for Astrophysics and Space Research. “Either we see this filament pattern, and fuzzy dark matter is plausible, or we don’t, and we can rule that model out. We now have a blueprint for how to do this.”

(more…)

error

"The Galaxy" in Your Inbox, Free, Daily