61. Dark Stars, Black Holes, Bright Galaxies One huge page packed with illustrations, diagrams and photographs portraying some interesting aspects of stars, black holes and galaxies. http://www.vuw.ac.nz/~mackie/royal_society/alpha/alpha.html

62. Binary Black Hole Home Page xxx.lanl.gov/abs/grqc/9707012 Blackholes Journey into the Unknown Resources. These are the Resources you need to start your Journey into the Unknown ; The Astronomers Searching for black holes by PBS (video); http://www.npac.syr.edu/projects/bh/

Supported by NSF ASC/PHY 9318152 (ARPA supplemented) New Developments edit New Developments page (members of the Alliance only) URGENT New PreReview papers: Bishop-Gomez-Lehner-Szilagyi-Winicour MISSION TIMELINE DIRECTORY ... PUBLICATIONS shortcuts: AlphabeticDirectory PreReview DataVault webmaster: Tom Haupt haupt@npac.syr.edu since 8/19/96

63. Taking The Cosmic Shortcut The future, Einstein's special theory of relativity, the past, theory of gravitation, black holes, wormholes, negative energy and links. http://www.abc.net.au/science/slab/wormholes/default.htm

64. New Scientist Exploding black holes rain down on Earth. 1900 03 December 03. Are mini black holes raining down through the Earth s atmosphere? http://www.newscientist.com/news/news.jsp?id=ns99994446

65. Beyond Einstein Beyond Einstein From the Big Bang to black holes.The education pages sponsored by the SEU Theme Office at the Office of Space Science at NASA Headquarters, with a link to the Educators Forum. http://universe.gsfc.nasa.gov/

Bypass navigation links and go to page content The discoveries of Albert Einstein sparked the scientific revolution of the 20th century and rank among the greatest achievements of humanity. Recent developments show that we can now complete Einstein's legacy and, in the first decades of the 21st century, unravel the mysteries of the Universe that await us . . . The Science The Program Great Observatories Probes ... Home A service of the Laboratory for High Energy Astrophysics (LHEA) at NASA Goddard Space Flight Center Web site design and maintenance by Pat Tyler, Responsible NASA Official: Phil Newman Privacy, Security, Notices

66. Pr-17-02.html Surfing a Black Hole. Star Orbiting Massive Milky Way Centre Approaches to within 17 LightHours 1. Summary. Quasars and black holes. http://www.eso.org/outreach/press-rel/pr-2002/pr-17-02.html

67. Transmitting Particle Energy In A Unified Universe Explains the dynamic makeup of the universe, transmitting (conducting) electromagnetic energy (frequencies), gravity, black holes, the formation and future of the universe. http://www.unified-universe.com/

68. Space And Time Course based on Stephen Hawking's best selling book, A Brief History of Time . The course deals with topics in modern physics such as Einstein's Special Theory of Relativity, Quantum Theory, black holes and the Creation of the Universe. http://info.hartwick.edu/physics/spacetime.html

69. HubbleSite - NewsCenter - 2000 - 03 - Lone Black Holes Discovered Adrift In The Lone black holes Discovered Adrift in the Galaxy All previously known stellar black holes have been found orbiting normal stars. http://hubblesite.org/newscenter/newsdesk/archive/releases/2000/03/

news GALLERY DISCOVERIES FUN ... releases Lone Black Holes Discovered Adrift in the Galaxy View all images Read the full press release text Credit: NASA and Dave Bennett (University of Notre Dame, Indiana) Find more news releases: About Exotic Black Hole About Exotic Gravitational Lens From about us contact us Cosmology Exotic Galaxy Miscellaneous Nebula Solar System Star Star Cluster Survey more options Search all of HubbleSite: Have you seen this? Are the colors real? Why that odd shape? What is an American Astronomical Society (AAS) meeting release? A major news announcement issued at an American Astronomical Society meeting, the premier astronomy conference. January 13, 2000 STScI-2000-03 Introduction Release Text Images Also in NewsCenter: Tools for journalists. News Media Resources Stay up to date with Inbox Astronomy. E-mail Lists

70. The Mysteries Of Space And Time About the secrets of distant suns, black holes, and stellar anomalies in space and time. http://library.thinkquest.org/12523/?tqskip1=1

71. Swirling Dust Near Black Hole Too Thick For Theory The black hole packs a mass equal to about 10 million Suns. More Stories. Runaway Star Collisions Create black holes. The True Shape of black holes. http://www.space.com/scienceastronomy/blackhole_vlt_040507.html

72. CNN.com - Black Holes crowd heart of next Galaxy - Mar 30, 2004 CNN http://cnn.com/2004/TECH/space/03/30/blackholes.galaxy.cnn/index.html

International Edition MEMBER SERVICES The Web CNN.com Home Page World U.S. Weather ... Special Reports SERVICES Video E-mail Services CNNtoGO Contact Us SEARCH Web CNN.com Black holes crowd heart of next galaxy By Robert Roy Britt SPACE.com Andromeda, our nearest galactic neighbor, may harbor a crowd of ten black holes at its center. Story Tools RELATED Hubble finds farthest galaxies Galaxy find stirs Big Bang debate Inside Andromeda YOUR E-MAIL ALERTS Space exploration or Create your own Manage alerts What is this? SPACE.com ) Using a new technique astronomers have found 10 apparent black holes near the center of the Andromeda galaxy, the nearest large spiral galaxy to our own. The search method might be employed to uncover more black holes in our Milky Way and in other, more distant galaxies. Andromeda is 2.5 million light-years away. The newfound black hole candidates there's a chance they might be neutron stars instead are of the stellar variety, meaning they are several times the mass of the sun and are the collapsed remains of dead stars. Each has a companion object, an orbiting normal star that feeds material to the black hole. The setups are known as low mass x-ray binary systems.

73. The New History Of Black Holes: 'Co-evolution' Dramatically Alters Dark Reputati A new theory called coevolution holds that supermassive black holes and galaxies co-evolved, each dependent on the other. black holes suffer a bad rap. http://www.space.com/scienceastronomy/blackhole_history_030128-1.html

SEARCH: Hubble Space Telescope advertisement The New History of Black Holes: 'Co-evolution' Dramatically Alters Dark Reputation By Robert Roy Britt Senior Science Writer posted: 07:00 am ET 28 January 2003 Black holes suffer a bad rap. Indicted by the press as gravity monsters, labeled highly secretive by astronomers, and long considered in theoretical circles as mere endpoints of cosmic evolution, these unseen objects are depicted as mysterious drains of destruction and death. So it may seem odd to reconsider them as indispensable forces of creation. Yet this is the bright new picture of black holes and their role in the evolution of the universe. Interviews with more than a half dozen experts presently involved in rewriting the slippery history of these elusive objects reveals black holes as galactic sculptors. In this revised view, which still contains some highly debated facts, fuzzy paragraphs and sketchy initial chapters, black holes are shown to be fundamental forces in the development and ultimate shapes of galaxies and the distribution of stars in them. The new history also shows that a black hole is almost surely a product of the galaxy in which it resides. Neither, it seems, does much without the other. The emerging theory has a nifty, Darwinist buzzword: co-evolution.

74. X-ray Map Finds Universe Teeming With Black Holes CNN http://cnn.com/2001/TECH/space/03/13/chandra.deepfields/index.html

75. The Hitch-Hiker's Guide To Black Holes. Everything you need to know about black holes. black holes When Do They Occur? Stars can born. Schwarzchild black holes. Black http://www.astro.keele.ac.uk/workx/blackholes/index3.html

Everything you need to know about BLACK HOLES. Black Holes -When Do They Occur? Stars can turn into varieties of things as they collapse, including white dwarfs, nuetron stars... A black hole is suggested to be the end product of a large star that is collapsing into itself. Due to the fact that gravitational acceleration is calculated by the formula : where m B is the mass of the black hole, as the radius (r) of the star decreases, the gravitational field on it's surface increases. This causes a chain reaction in which a greater force is put on the star to collapse, thus decreases in size even further, and the gravity of it's surface increases. It is suggested that a star would have to have a mass equivalent to three times that of our sun to become a black hole. If though a star with an equivalent mass to the Earth were to collapse into a black hole, the space that all of the matter would take up would have a radius of less than 9mm. It is easy to see that the density of this would be huge-thus demonstrating why it would have such noticeable effects.The gravitational field created would have important effects to it's surrounding environment, producing signs for astronomers to observe when looking for a black hole. Einstein's theory of general relativity , suggest that close to the star itself, strong distortions occur in the structure of space. He found that the acceleration was equal when caused by changing motion, compared to when changed by gravitational fields. From this we deduce that at the point of a gravitational field, space itself is curved such that moving particles follow the same path as they would if they were being accelerated. This has applications towards photons of light as well as any other particle.

76. Black Holes With Java black holes with Java. (However this is the radial coordinate commonly used for describing such black holes and the coordinate use as radius in the applet). http://www.astro.queensu.ca/~musgrave/cforce/blackhole.html

Black Holes with Java What's different about these two orbits? (Your browser is not Java aware) As the above Applet demonstrates gravity described by a Newtonian central force and the motion near a black hole described by Einstein's theory of general relativity differ qualitatively. The Newtonian orbits are closed and the orbits in Einstein's theory are not. Some of our confidence in Einstein's theory comes from direct observation of this effect in the orbit of Mercury (the effect is slight and observations over many years are required to measure it). The General Idea In general relativity the motion of a particle near a black hole is not given by a force equation. Einstein's theory describes the gravitational effect of mass as a curvature of the spacetime. The orbiting body moves with no outside forces acting on it in a "straight line" (or geodesic). However in a curved space a "straight line" is not straight but curved and the result is the orbit seen above. The curvature of the space also gives rise to a complication in interpreting the radius shown in the applet. In a black hole of the type modeled here a sphere with area 4 Pi R is not a distance R from the origin! (However this is the radial coordinate commonly used for describing such black holes and the coordinate use as "radius" in the applet). In a similar fashion the time used in the evolution of the orbit is the time experienced by an observer travelling with the orbiting body and not that of someone watching from afar.

77. Relativity And Cosmology undergraduate course notes include both special relativity (e.g., spacetime, Lorentz invariance, various paradoxes ) and general relativity (e.g., equivalence principle, black holes, gravitational waves, experimental tests of gtr). Apparently a survey course for nonmajors, with little math but some very nice graphics. http://phyun5.ucr.edu/~wudka/physics7.html

78. Project 2000 Black Holes Pictures, diagrams, and explanations of black holes in an easy to understand format. Good site for someone doing research on black holes for a report or project. http://www.homestead.com/sciproj/

79. [gr-qc/0010055] An Introduction To Black Hole Evaporation An Introduction to Black Hole Evaporation. Classical black holes are defined by the property that things can go in, but don t come out. http://arxiv.org/abs/gr-qc/0010055

80. Artificial Black Holes On The Threshold Of New Physics By creating tiny black holes, scientists hope to learn how they can merge the theories of quantum mechanics and general relativity together. http://www.csmonitor.com/2003/0523/p25s02-stss.html

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