background preloader

The Largest Black Holes in the Universe

The Largest Black Holes in the Universe
Related:  Astronomy & Physicsjaimeernestoromanpiraquive3Cosmos

Earth & Space Science Essential Science for Teachers Exploring topics that range from soil to the solar system, Essential Science for Teachers: Earth and Space Science provides participants the opportunity to increase their science content knowledge and develop new understandings of how this content connects to K - 6 classrooms. The Geologic Timeline "Which came first, the chicken or the egg?" is an age-old question. But, what about things that happened long before there were chickens OR eggs? For Further Information When you see the following icon in the video, click at left for "A Closer Look" This course is composed of eight sessions, each with a one-hour video program addressing a topic area in Earth and Space science that emphasizes the science content that is likely to be part of any elementary school science curriculum. Posing the question "What is Earth’s structure and its place in the universe?"

U.S. Senate Welcome Robot Challenge Winners to Washington The Millennium Falcon takes on TIE fighters in a scene from 'Star Wars: The Force Awakens.' Credits: Disney Space Screening, ‘TIE’-ins, Tatooine and The Droids You’re Looking For NASA astronauts “use the force” every time they launch … from a certain point of view. We have real-world droids and ion engines. If you're looking to be a "sky walker" yourself someday, NASA is now taking astronaut applications and we're offering a list of Star Wars-related reasons you should apply. That's not the first connection we've noticed. STS-117 flyaround of International Space Station. Credits: NASA The "TIE-ins" go beyond casual resemblance to real engineering. This image shows a cutting-edge solar-electric propulsion thruster in development at NASA's Jet Propulsion Laboratory, Pasadena, Calif., that uses xenon ions for propulsion. Credits: NASA/JPL-Caltech We Actually Do Have the Droids You’re Looking For NASA's own "R2," Robonaut 2, at work on board the International Space Station

Black hole powered jets plow into galaxy May 15, 2013 — This composite image of a galaxy illustrates how the intense gravity of a supermassive black hole can be tapped to generate immense power. The image contains X-ray data from NASA's Chandra X-ray Observatory (blue), optical light obtained with the Hubble Space Telescope (gold) and radio waves from the NSF's Very Large Array (pink). This multi-wavelength view shows 4C+29.30, a galaxy located some 850 million light years from Earth. The radio emission comes from two jets of particles that are speeding at millions of miles per hour away from a supermassive black hole at the center of the galaxy. The estimated mass of the black hole is about 100 million times the mass of our Sun. The ends of the jets show larger areas of radio emission located outside the galaxy. The X-ray data show a different aspect of this galaxy, tracing the location of hot gas. These results were reported in two different papers.

start chapter 0: Introductory Materials[+] 1: Introductory Physics: A Model Approach, Online Edition 2: Copyright and License 3: Dedication: 4: Foreword 5: Introduction to the Second Edition 6: Author’s Preface 7: Table of Contents chapter 1: The nature of science[+] 1: The scientific process 2: Domains of magnitude 3: Theories and models in science 4: Definitions 5: Length, time, and mass 6: Summary 7: List of new terms 8: Problems 9: Bibliography chapter 2: Reference frames[+] 1: Relative position 2: Relative position 3: Displacement 4: Summary 5: List of new terms 6: List of symbols 7: Problems 8: Bibliography chapter 3: The interaction concept[+] 1: Evidence of interaction 2: Historic background 3: Systems 4: Collecting evidence of interaction 5: Interaction-at-a-distance chapter 4: Matter and energy[+] 1: Conservation of energy 2: Systems and subsystems 3: Passive coupling elements 4: Forms of energy storage 5: The many-interacting-particles (MIP) model for matter 6: Equilibrium and steady states 7: The feedback loop model

Paintings for Sale | Originals and Prints The History of Paintings It seems humans have been drawn to artistic expression for millennia. Some of the oldest known paintings can be found at the Chauvet Cave in France, which are estimated to be about 32,000 years old. During the late Renaissance, oil painting techniques were developed in the Netherlands, … Read Morewhich quickly spread across Europe. Oil paint is a more flexible medium, and allows for a greater range of optical effects; this in turn led to new expressive techniques for artists. Tempera paint was the preferred medium of choice in Renaissance Italy. During the Era of Enlightenment, five genres of paintings were advocated by art academies, including the French Academy and the Royal Academy in London. The invention of photography in the 19th century greatly affected the course of painting. Famous Paintings and Painters Other famous Impressionist and Post-Impressionist artists include Degas, Cassatt, Morisot, Van Gogh, Cezanne, and Seurat. Painting Techniques

Mystery radio bursts blamed on black hole 'blitzars' - space - 04 July 2013 Brief and bright, fast and furious, uncommonly pure. Fast radio bursts have baffled astronomers since their discovery six years ago, but now they are revealing their true nature. Two new studies suggest that FRBs are as common as dirt, that they produce more energy in a millisecond than the sun does in a million years, and that their single, intense flash of radio waves may be created when a neutron star is severed from its magnetic field as it collapses into a black hole. This explanation has also led to a more evocative name – blitzars – after the German word blitz for lightning. In 2007, Duncan Lorimer and David Narkevic of West Virginia University in Morgantown discovered the first fast radio burst . The plot thickened in 2012 when Evan Keane, now at the Max Planck Institute for Radio Astronomy in Bonn, Germany, and his colleague detected a similar event. Today Dan Thornton of the University of Manchester, UK, and colleagues have taken the total count to six in one fell swoop.

Supermoon – Super Moon A Supermoon is a full Moon or a new Moon at its closest point to Earth; also called perigee. A Supermoon looks around 12 to 14% bigger than its counterpart, the Micromoon. Perigee and Apogee The Moon's orbit around the Earth is not a perfect circle, but elliptical, with one side closer to the Earth than the other. The point on the Moon's orbit closest to the Earth, is called the perigee and the point farthest away is the apogee. 238,000 Miles on Average This means that the distance between the Moon and Earth varies throughout the month and the year. Moon Phases worldwide When a full Moon or new Moon coincides with being closest to Earth, it is called a Supermoon, Super Full Moon, or Super New Moon. A Micromoon, on the other hand, is when a full or a new Moon is farthest from the Earth (apogee). Not an Official Name Supermoon is not an official astronomical term. There are currently no official rules as to how close or far the Moon must be to qualify as a Supermoon or a Micro Moon.

antarctica, land of eternal snow | In Search of Balance Audio Player Astronauts have said that the most distinctive feature of Earth as seen from space is Antarctica, which “radiates light like a great white lantern across the bottom of the world”. Its ice sheet is over 2km thick on average, contains more that 90% of the world’s ice and snow, and has an area greater that the US and Central America combined. If suddenly melted, oceans would rise dramatically and drown a large chunk of humanity. Yet, until 200 years ago no one had seen it, let alone explore it. Yet it is a land of extreme and spectacular contrast. I was lucky enough to spend 12 days around Livingston island where the Bulgarian Antarctic base is. Sunrise over Buenos Aires as we were catching a flight down to Punta Arenas. Our ship Hesperides (part of the Spanish Armada) that got us across to our final destination. Last bit of land around us shot around 6am before we head for open water. Sunset over Drake that lasted for an hour and a half. One of the chapels, shot around 2am.

Farsnews TEHRAN (FNA)- Astronomers were on a celestial fishing expedition for pulsing neutron stars and other radio bursts when they found something unexpected in archived sky sweeps conducted by the Parkes radio telescope in New South Wales, Australia.[VIDEO] The powerful signal, which lasted for just milliseconds, could have been a fluke, but then the team found three more equally energetic transient flashes all far removed from the galactic plane and coming from different points in the sky. Analysis later indicated that, unlike most cosmic radio signals that originate in the Milky Way or a nearby neighbor galaxy, these four seem to have come from beyond. Whatever triggered the bursts has come and gone. What is known is that in just a few milliseconds, each of the signals released about as much energy as the sun emits in 300,000 years. Scientists have all kinds of theories about what exotic phenomena may have triggered the bursts. The research appears in this week’s Science.

Do you understand "At X-rays we astromers can see a cloud of gas"? by lenadias May 25

this black hole has a mass 18 000 000 000 times mass of sun. Its mass is concentrated on a point with dimensions near zero. Of course its gravity is enormous compairing that one of the sun by lenadias May 25

Related: