Latest Supermassive black hole Stories

Urban Galactic Clusters Stopped Forming Stars Billions Of Years Ago
2013-12-19 12:36:09

Brett Smith for redOrbit.com - Your Universe Online A new study based on data from NASA’s Spitzer Space Telescope has revealed new details about so-called urban galaxies that exist in large clusters. The study found that these clusters stopped forming new stars about 9 billion years ago, much later than previously thought. These galactic cities were said to have eventually either used up or lost their fuel. Meanwhile, more rural galaxies are still actively forming stars. "We know...

Lightweight Black Hole Has Elegant Manners
2013-11-29 05:00:59

April Flowers for redOrbit.com - Your Universe Online Our understanding of how some black holes consume matter might be changed by new observations of a black hole powering an energetic X-ray source in a galaxy some 22 million light years away. The findings, published in a recent issue of Nature, indicate that this particular black hole, thought to be the engine behind the X-ray source’s high-energy light output, is unexpectedly lightweight. Additionally, in spite of the generous amount...

Hubble Reveals First Visual Evidence Of Milky Way's Formative Years
2013-11-14 16:35:20

HubbleSite NASA's Hubble Space Telescope has provided the first visual evidence showing how our home galaxy, the Milky Way, assembled itself into the majestic pinwheel of stars we see today. Perusing Hubble's deep-sky surveys, astronomers traced 400 galaxies similar to our Milky Way at various stages of construction over a time span of 11 billion years. "For the first time we have direct images of what the Milky Way looked like in the past," said study co-leader Pieter G. van Dokkum...

Hubble Sees Old And Mysterious Cluster
2013-11-14 12:17:16

[ Watch The Video: A Rare and Exotic Intermediate-Mass Black Hole ] NASA/ESA Hubble Space Telescope The NASA/ESA Hubble Space Telescope has captured the best ever image of the globular cluster Messier 15, a gathering of very old stars that orbits the center of the Milky Way. This glittering cluster contains over 100 000 stars, and could also hide a rare type of black hole at its center. This multi-colored firework display is a cluster of stars known as Messier 15, located some...

Densest Galaxy Discovered
2013-09-24 15:58:52

[ Watch the Video: Hubble Locates Densest Galaxy Ever ] Brett Smith for redOrbit.com - Your Universe Online The distance from our sun to the next closest star, Alpha Centauri, is 25.6 trillion miles. While that may seem far, try to imagine 10,000 stars sitting between the two solar systems, meaning the stars would be spaced about the distance from Earth to Pluto. That’s exactly the scenario in M60-UCD1, a recently discovered 'ultra-compact dwarf galaxy' described in a study by a...

Black Hole Blows Powerful Streams
2013-09-06 08:51:29

April Flowers for redOrbit.com - Your Universe Online A worldwide network of radio telescopes has allowed astronomers to find strong evidence that a powerful jet of material, propelled to nearly light speed by the central black hole of a galaxy, is blowing massive amounts of gas out of the host galaxy. The scientists say the process is limiting the growth of the black hole and the rate of star formation in the galaxy. That makes the process a key to understanding how galaxies develop....

Black Holes Shine For NuSTAR
2013-09-06 06:38:46

[ Listen to the Podcast: Supermassive Black Holes – With Guest Dr. Kelly Holley-Bockelmann ] April Flowers for redOrbit.com - Your Universe Online The Nuclear Spectroscopic Telescope Array (NuSTAR) spacecraft, NASA’s black-hole-hunter, had identified its first 10 supermassive black holes. Over the next two years, the NuSTAR team expects to find hundreds of black holes. Supermassive black holes – which are black holes surrounded by thick disks of gas – are gargantuan...

Highly Magnetized Pulsar At Galactic Center
2013-08-14 12:20:25

John P. Millis, PhD for redOrbit.com - Your Universe Online At the center of the Milky Way lurks a supermassive black hole known as Sagittarius A*, with some four million times the mass of our Sun. More than any single object, it has the greatest impact on the formation, evolution and fate of our galaxy. However, probing this massive object is difficult. Due to the nature of black holes, most of what we learn about their existence is derived by observing their influence on other nearby...

Mystery Missing Massive Galaxies
2013-07-24 13:28:57

[ Watch the Video: Three-Dimensional View of NGC 253 ] Lee Rannals for redOrbit.com - Your Universe Online New observations have given a group of astronomers the best view yet of how star formation regions can get selfish and gassy. Astronomers using the European Southern Observatory's (ESO) ALMA telescope in Chile say they have discovered how vigorous star formation in a galaxy can blast gas out of it and deprive future generations of stars of the fuel they need to form and grow....

Latest Supermassive black hole Reference Libraries

2004-10-19 04:45:41

Microquasar -- Microquasars are smaller cousins of quasars. They are named after quasars, as they have some common characteristics: strong and variable radio emission often seen as radio jets, and an accretion disk surrounding a black hole. In quasars, the black hole is supermassive (millions of solar masses) as in microquasars, the black hole mass is a few solar masses. In microquasars, the accreted mass comes from a normal star and the accretion disk is very luminous in optical regions...

2004-10-19 04:45:41

Black Hole -- Black holes are objects so dense that not even light can escape their gravity. They are believed to form from the gravitational collapse of astronomical objects containing two or more solar masses. Astronomical observations suggest that the center of most galaxies, including our own Milky Way, contain supermassive black holes containing millions to billions of solar masses. Black holes are predictions of Einstein's theory of general relativity. In particular, they occur...

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Word of the Day
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.