16 Sept 2009
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search tags: a*, anti-matter, astro, atlas, big bang, black hole, bose-einstein condensate, boson, bullet cluster, calculus, capacitance, cern, cloud chamber, cmb, collision, computation, cosmic ray, cosmology, dark energy, dark matter, double beta decay, electric, exoplanet, field, flux, friction, fusion, galaxy, gas, general relativity, gravitational wave, gravity, higgs, hubble, impulse, iter, kinetic, kinetic energy, large hadron collider, lhc, magnetic, matrices, mechanics, meissner, mixing, momentum, monte carlo method, neutrino, newton, nuclear, oscillation, particle, pendulum, photon, planet, potential, probability, qcd, qft, quantum, reflection, relativity, sagittarius, sound, special relativity, standard model, stellar evolution, string theory, superconductors, superfluidity, supermassive, symmetry, synchrotron, telsa coil, tevatron, theoretical, thermal, torque, transmission, vector, vibrations, waves, work, x-ray
category: astro, calculus, electricity/magnetism, mechanics, misc, nuclear, particle physics, probability, quantum, relativity, theoretical, thermodynamics, waves
nature: briefing, demonstration, documentary, lecture, lecture-series, short
audience: popular, postgraduate, undergraduate
category: astro, calculus, electricity/magnetism, mechanics, misc, nuclear, particle physics, probability, quantum, relativity, theoretical, thermodynamics, waves
nature: briefing, demonstration, documentary, lecture, lecture-series, short
audience: popular, postgraduate, undergraduate
An archive of BBC Sky At Night programmes from December 2001 through August 2008.
The cores of most normal galaxies contain black holes that are millions to billions of times more massive than our Sun. Galaxies probably also contain millions of remnant stellar-mass black holes.
Ten years of painstaking measurements track the star S2 around the supermassive black hole in Sagittarius A*.
credit: ESO / Max-Planck Institute for Extraterrestrial Physics. 17 Oct 2002;
type: short;
level: popular;
duration: 0:19
category: astro; tags: galaxy, supermassive, black hole, Sagittarius, a*
category: astro; tags: galaxy, supermassive, black hole, Sagittarius, a*
The Hubble Space Telescope has discovered an extrasolar planet, for the first time using direct visible-light imaging.
For nineteen years, the Hubble Space Telescope has made some of the most dramatic discoveries in the history of astronomy but it has also helped scientists learn more about our own Solar System.
We can't see dark matter but it makes up at least 20% percent of the universe.
credit: PBS; Nova. 11 Jan 2008;
type: documentary;
level: popular;
duration: 04:40
category: astro; tags: astro, dark matter, bullet cluster
category: astro; tags: astro, dark matter, bullet cluster
In this lecture Walter Lewin provides illuminating evidence of stars we cannot see. He describes the birth of stars, in the arms of a nebula, to their explosive or implosive ends.
Patricia Burchat expertly sheds light on two basic ingredients of our universe: dark matter and dark energy at TED2008.
The evidence that the universe emerged 14 billion years ago from an event called 'the big bang' is overwhelming. Yet the cause of this event remains deeply mysterious.
credit: The Perimeter Institute. 5 Mar 2008;
type: lecture;
level: popular;
duration: 1:18:41
category: astro; tags: cosmology, cmb, big bang
category: astro; tags: cosmology, cmb, big bang