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How big is a supermassive black hole?

4 days agoNews : The Raw Story

How Big Is A Supermassive Black Hole? Lurking at the center of the Milky Way galaxy is the supermassive black hole Sagittarius A, a monstrous clump of matter so dense that the pull of its gravity overpowers anything that comes near it, including light itself....

New stellar stream discovered by astronomers

(Phys.org)—An international team of astronomers has detected a new thin stellar stream in the halo of the Milky Way galaxy. The newly discovered feature, named "jet stream," could help researchers answer fundamental questions about the mass distribution of the Milky Way's dark matter halo. The finding was presented November 24 in a paper published on the arXiv pre-print server.

The search for alien life was just dealt a massive blow

With the incredible number of galaxies that mankind can observe from its tiny little perch here in the Milky Way, we know there are an absolutely incredible number of planetary systems in the universe, and that means the possibility that alien life has evolved elsewhere in the cosmos is quite good. Show More Summary

Binary Star System May Actually Be A Pair Of Orbiting Supermassive Black Holes

Oops! Andromeda, our closest galactic neighbour, sits a measly 2.5 million light years away from Earth. Like the Milky Way, it's a spiral galaxy packed with stars. Some of those stars orbit one another. That's all good - but scientists...Show More Summary

72 Newly-Discovered Galaxies Changes Odds in Fermi’s Paradox

“Where is everybody?” That’s the question Enrico Fermi asked his co-workers at the at Los Alamos National Laboratory in 1950 as they pondered lunch and why, if there are billions of stars in the Milky Way galaxy older than our Sun with a high probability of having planets similar to Earth, we’ve never had any... Read more »

Blowing in the stellar wind: Scientists reduce the chances of life on exoplanets in so-called habitable zones

Is there life beyond Earth in the cosmos? Astronomers looking for signs have found that our Milky Way galaxy teems with exoplanets, some with conditions that could be right for extraterrestrial life. Such worlds orbit stars in so-called "habitable zones," regions where planets could hold liquid water that is necessary for life as we know it.

Flyby of Interstellar Asteroid Portends a Quadrillion Trillion More in Galaxy

Reports of the first-ever flyby of a body from another stellar system suggest a vast sea of interstellar shards and a Neptune-like planet around every star in the Milky Way -- Read more on ScientificAmerican.com

Rebel stars spotted forming in the turbulent center of the Milky Way

2 weeks agoTechnology / Gadgets : Gizmag

A supermassive black hole, with the mass of about 4 million Suns, sits at the center of the Milky Way galaxy. With strong swirling gravitational forces and intense UV light and X-ray radiation, the region around it is one of the most extreme environments in the galaxy. Show More Summary

"Unlikely New Discovery" --Stars Like Our Sun Exist in Milky Way's Violent Supermassive Black Hole Region (VIDEO)

At the center of our galaxy, in the immediate vicinity of its supermassive black hole, is a region wracked by powerful tidal forces and bathed in intense ultraviolet light and X-ray radiation. These harsh conditions, astronomers surmise, do not favor...        

ALMA discovers infant stars surprisingly near galaxy's supermassive black hole

(National Radio Astronomy Observatory) ALMA has revealed the telltale signs of eleven low-mass stars forming perilously close -- within three light-years -- to the Milky Way's supermassive black hole.

We’ve found a bunch of dwarf galaxies we thought didn’t exist

The missing dwarf galaxies around the Milky Way have been found. Their existence means dark matter could be made of particles that are warmer than we expected

First proper motions measured of stars in a small galaxy outside the Milky Way

By combining data from the Hubble Space Telescope and the Gaia mission, University of Groningen astronomers have been able to measure the proper motion of 15 stars in the Sculptor Galaxy, the first such measurement of stars in a small galaxy outside the Milky Way. Show More Summary

Fly-By of Interstellar Asteroid Portends Quadrillion Trillion More in Galaxy

Reports of the first-ever flyby of a body from another stellar system suggest a vast sea of interstellar shards and a Neptune-like planet around every star in the Milky Way -- Read more on ScientificAmerican.com

Astronomers reveal nearby stars that are among the oldest in our galaxy

(Georgia State University) Astronomers have discovered some of the oldest stars in our Milky Way galaxy by determining their locations and velocities, according to a study led by scientists at Georgia State University.

Drug Discovery AI to Scour a Universe of Molecules for Wonder Drugs

On a dark night, away from city lights, the stars of the Milky Way can seem uncountable. Yet from any given location no more than 4,500 are visible to the naked eye. Meanwhile, our galaxy has 100–400 billion stars, and there are even more galaxies in the universe. The numbers of the night sky are […]

Stuff The Internet Says On Scalability For November 17th, 2017

Hey, it's HighScalability time: The BOSS Great Wall. The largest structure yet found in the universe. Contains 830 galaxies. A billion light years across. 10,000 times the mass of the Milky Way. If you like this sort of Stuff then please support me on Patreon. Show More Summary

We found our galactic twin 180 million light years away

Astronomers have spotted a trio of galaxies that look remarkably like the giant spiral of the Milky Way and its two brightest companions, the Magellanic Clouds

"All These Worlds are Yours" --NASA's Search for Alien Planets Transforms Our View of the Milky Way (WATCH Today's 'Galaxy' Stream)

"All these worlds are yours," wrote Arthus C Clarke in Space Odyssey 2010. Today, the count of confirmed Kepler exoplanets has passed 3,500 since 1995, when the detection of 51 Pegasi b, a roasting giant in a close orbit around...        

'Molecular Forests' at the Center of Galaxies --"Raw Materials for Life are Common in the Cosmos"

Many "molecular forests" have been found in our Milky Way Galaxy, but this is the first example outside the Milky Way. Researchers assume that the molecular jungle is an aggregate of dense and warm cocoons around bright baby stars. The...        

Incredible Gravitational Technique Reveals Oldest Spiral Galaxy On Record

Galaxies didn't always take on the beautiful spiral shape we've come to associate with Andromeda and our own Milky Way. Looking far away into deep space - and into the past - ancient galaxies mostly look like giant blobs. But thanks to gravity's light-bending properties, scientists have spotted a confounding thing in the distance. Show More Summary

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