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Scientists find black hole 'missing link'

Scientists find black hole 'missing link'

Space & Earth / Astronomy

created Sep 17, 2008 | popularity 4.2 / 5 (56) | comments 11

Scientists at Durham University have found the "missing link" between small and super-massive black holes.


Black Hole

Cookie cutter in the sky: Seeing the shape of material around black holes for first time

Space & Earth / Astronomy

created Dec 16, 2008 | popularity 4.6 / 5 (27) | comments 34

Black holes can now be thought of as donut holes. The shape of material around black holes has been seen for the first time: an analysis of over 200 active galactic nuclei—cores of galaxies powered by disks ...


X-ray and Optical Image of NGC 4649

A new way to weigh giant black holes

Space & Earth / Astronomy

created Jul 16, 2008 | popularity 4.6 / 5 (23) | comments 5

How do you weigh the biggest black holes in the universe? One answer now comes from a completely new and independent technique that astronomers have developed using data from NASA's Chandra X-ray Observatory.


Illustration and Image of M33 X-7

Heaviest stellar black hole discovered in nearby galaxy

Space & Earth / Astronomy

created Oct 17, 2007 | popularity 4.8 / 5 (39) | comments 0

Astronomers have located an exceptionally massive black hole in orbit around a huge companion star. This result has intriguing implications for the evolution and ultimate fate of massive stars.


New class of black holes discovered

New class of black holes discovered

Space & Earth / Astronomy

created Jul 01, 2009 | popularity 5 / 5 (22) | comments 15

A new class of black hole, more than 500 times the mass of the Sun, has been discovered by an international team of astronomers.


Scientists observe super-massive black holes using Keck Observatory in Hawaii

Scientists observe super-massive black holes using Keck Observatory in Hawaii

Space & Earth / Astronomy

created Dec 10, 2009 | popularity 5 / 5 (8) | comments 3

An international team of scientists has observed four super-massive black holes at the center of galaxies, which may provide new information on how these central black hole systems operate. Their findings ...


Invading black holes explain cosmic flashes

Invading black holes explain cosmic flashes

Space & Earth / Astronomy

created Sep 18, 2009 | popularity 4.2 / 5 (25) | comments 12

(PhysOrg.com) -- Black holes are invading stars, providing a radical explanation to bright flashes in the universe that are one of the biggest mysteries in astronomy today.


Computer Finds Massive Black Hole in Nearby Galaxy

Computer Finds Massive Black Hole in Nearby Galaxy

Space & Earth / Astronomy

created Jun 09, 2009 | popularity 4.7 / 5 (7) | comments 7

Astronomers Karl Gebhardt of The University of Texas at Austin and Jens Thomas of the Max Planck Institute for Extraterrestrial Physics have used new computer modeling techniques to discover that the black ...


Living fossils hold record of 'supermassive' kick

Living fossils hold record of 'supermassive' kick

Space & Earth / Astronomy

created Jul 09, 2009 | popularity 4.7 / 5 (15) | comments 9

The tight cluster of stars surrounding a supermassive black hole after it has been violently kicked out of a galaxy represents a new kind of astronomical object and a fossil record of the kick.


The mystery of young stars near black holes solved

Space & Earth / Astronomy

created Aug 22, 2008 | popularity 4.4 / 5 (18) | comments 1

The mystery of how young stars can form within the deep gravity of black holes has been solved by a team of astrophysicists at the Universities of St Andrews and Edinburgh.


The Edge of a Black Hole

The Edge of a Black Hole

Space & Earth / Astronomy

created Aug 18, 2009 | popularity 4 / 5 (27) | comments 14

The existence of black holes is one of the most amazing and bizarre predictions of Einstein's theory of gravity. Despite his original misgivings about their reality, massive black hole holes are today believed ...


Astronomers discover upper mass limit for black holes

Space & Earth / Astronomy

created Sep 11, 2008 | popularity 4.4 / 5 (40) | comments 9

There appears to be an upper limit to how big the universe's most massive black holes can get, according to new research led by a Yale University astrophysicist.


Most Black Holes Might Come in Only Small and Large

Most Black Holes Might Come in Only Small and Large

Space & Earth / Astronomy

created Aug 20, 2008 | popularity 4.3 / 5 (32) | comments 22

(PhysOrg.com) -- Black holes are sometimes huge cosmic beasts, billions of times the mass of our sun, and sometimes petite with just a few times the sun's mass. But do black holes also come in size medium? ...


A Black Hole in Medusa's Hair

A Black Hole in Medusa's Hair

Space & Earth / Astronomy

created Mar 11, 2009 | popularity 4.6 / 5 (7) | comments 0

This composite image of the Medusa galaxy (also known as NGC 4194) shows X-ray data from NASA's Chandra X-ray Observatory in blue and optical light from the Hubble Space Telescope in orange. Located above ...


Rogue Black Holes May Roam the Milky Way

Rogue Black Holes May Roam the Milky Way

Space & Earth / Astronomy

created Apr 29, 2009 | popularity 4.3 / 5 (21) | comments 13

(PhysOrg.com) -- It sounds like the plot of a sci-fi movie: rogue black holes roaming our galaxy, threatening to swallow anything that gets too close. In fact, new calculations by Ryan O'Leary and Avi Loeb ...