Archive for the ‘cosmology’ category: Page 289
Feb 21, 2018
He Took a Picture of a Supernova While Setting Up His New Camera
Posted by Genevieve Klien in categories: cosmology, electronics
Astronomers rarely see the beginnings of these explosions, but an Argentine amateur’s lucky picture helped them study the start of a massive star’s violent death.
Feb 21, 2018
Astronomers Just Found Some of The Most Massive Black Holes Discovered in Our Universe
Posted by Genevieve Klien in categories: cosmology, evolution, physics
A study on dozens of galaxies within several billion light years of our own has revealed black holes that far exceed our expectations on just how big these monsters can grow.
The discovery not only helps us better understand the evolution of our Universe’s building blocks, it leaves us with a new intriguing question – just how do black holes like these get to be so incredibly massive?
By now, the collapsed cores of massive stars known as black holes need no introduction. We’ve heard about their cosmic crashes rippling space-time, watched them belch, and expect to capture the closest look yet at their nature very soon.
Feb 20, 2018
This Is the Most Distant Confirmed Supernova Ever Observed
Posted by Genevieve Klien in category: cosmology
Supernovae are already some of the brightest explosions in the universe—but there’s more mysterious type, called superluminous supernovae, that can shine a hundred times brighter than the usual ones. And on August 22, 2016, astronomers spotted one whose light traveled over 10 billion years to reach us.
The discovery of the event, called DES16C2nm, was exciting enough on its own since it would normally have been invisible to telescopes if not for the fact that the universe is expanding, thus stretching the light from the explosion into wavelengths we can see from Earth. More generally, these flashes can tell the story of our universe, like what kinds of stuff lives between stars in distant galaxies, and other quirks of the cosmos.
“The more distant supernovae we see, the more information we get on those stars.” one of the study’s authors, Charlotte Angus from the University of Southampton in the United Kingdom, told Gizmodo.
Continue reading “This Is the Most Distant Confirmed Supernova Ever Observed” »
Feb 20, 2018
Entangled universe: Could wormholes hold the cosmos together?
Posted by Shailesh Prasad in categories: cosmology, physics
Weird connections through space-time might make reality real, giving us a promising new route to a theory of everything.
Feb 17, 2018
Bioquark Inc. — Aging GreatFULLy Show — Ira S. Pastor
Posted by Ira S. Pastor in categories: aging, bioengineering, biotech/medical, business, cosmology, cryonics, DNA, futurism, genetics, health
Feb 11, 2018
‘Ultra-intense laser’ stops electrons travelling at near-light speed for first time, mimicking black holes
Posted by Genevieve Klien in categories: cosmology, quantum physics
Using a laser beam one quadrillion times brighter than the Sun, physicists have stopped electrons travelling at near-light speeds for the first time. The experiment produced a quantum mechanical phenomenon that was previously only thought to occur around black holes and quasars.
Feb 1, 2018
Bioquark Inc. — Cafe Esoterica Radio Show (Part #1 ) — Ira Pastor
Posted by Ira S. Pastor in categories: aging, alien life, astronomy, bioengineering, biotech/medical, cosmology, cryonics, genetics, health, neuroscience
Feb 1, 2018
Multiverse Thought Experiment Suggests Life Could Still Exist Under Different Laws of Physics
Posted by Genevieve Klien in categories: cosmology, particle physics
Image: istolethetv/Flickr Perhaps we’re not alone but instead reside in a multiverse stocked with all sorts of fantastical realms. These other universes are somewhat—but not exactly—like our own. Maybe gravity acts differently, or particles come in different shapes and sizes. Could life still exist in any of these bubbles? A team of researchers at the University of Michigan asked these questions but took things a step further. They removed one of the four fundamental forces of nature, the weak nuclear force, from their hypothetical universes. And according to their calculations, these alter…