Cosmic Journeys Cutting-edge stories about the origins of the universe, black holes, exploding stars, the search for ET life, and the nature of the planets. How did the universe begin? Where will it end? Are there other worlds like Earth? A groundbreaking series combs the rubble of exploding stars and the collision of worlds in search of answers to our most searching questions about the cosmos. Crashing into the Moon. Attack of the Sun. The Asteroid that Flattened Mars. Super Hurricanes. Saturn's Mysterious Moons. The Largest Black Holes in the Universe. How Large is the Universe? When Will Time End? The Incredible Journey of Apollo 12. Supermassive Black Hole in the Milky Way Galaxy. The Search For Earth-Like Planets. Voyage to Pandora: Humanity's First Interstellar Flight. Hubble 20 Years of Space-Shattering Discoveries. Black Holes: The Other Side of Infinity. Watch the full documentary now (playlist)
Molecular Movies Go Hollywood BioVision's latest animation shows how food is converted into energy. By John Roach, Contributing Writer, NBC News Biologists are using the kind of animation technology you might see in a multimillion-dollar "Toy Story" movie to show the general public how molecules inside a cell work. The resulting high-tech visual aids have found their way into thousands of high-school classrooms, and they've been watched millions of times on video-sharing websites such as YouTube. That's the kind of success Robert Lue, director of life sciences education at Harvard University and the creator of the BioVisions project, has been hoping to achieve. "It is very much about how do you put science in context, how do you take advantage of the fact that we are visual animals, that we in fact understand the world through our eyes to a significant degree, and apply that reality of who we are as animals to the way in which we perceive science," he told me. More stories on the science of movies and animations:
Astro... Periodic Table of the Elements SIMBAD Astronomical Database What is SIMBAD, and what is it not ? The purpose of Simbad is to provide information on astronomical objects of interest which have been studied in scientific articles. Simbad is a dynamic database, updated every working day. It provides the bibliography, as well as available basic information such as the nature of the object, its coordinates, magnitudes, proper motions and parallax, velocity/redshift, size, spectral or morphological type, and the multitude of names (identifiers) given in the literature. The CDS team also performs cross-identifications based on the compatibility of several parameters, in the limit of a reasonably good astrometry. Simbad is a meta-compilation built from what is published in the literature, and from our expertise on cross-identifications. Simbad is not a catalogue, and should not be used as a catalogue.
Astronomy Picture of the Day's Educational Links What follows is a list of resources that excel in astronomy education. Each resource is distinctly different - they have been chosen to highlight a wide range of interests. We believe the list is topologically complete in that there are no publicly advertised astronomy resources on the WWW that cannot be found by following the internal links of these resources. The list is in alphabetical order, and is subject to change as the WWW, and our knowledge of it, matures. APOD in the Classroom How Astronomy Picture of the Day (APOD) is being used as a learning tool by teachers and students. Astronomy 101 Online for Free See all the video lectures and Powerpoint slides for a real Introductory Astronomy Course taught at Michigan Technological University. Astronomy with a Stick Elementary school astronomy activities that can be done with only a stick. Astronomy Picture of the Day Subject Sorted Archive This archive contains Astronomy Pictures of the Day (TM) sorted by subject and is updated monthly.
The Incredible Relative Speed of the Earth Embed This Quick Fact: <a href=" title="The Incredible Relative Speed of the Earth"><img src=" alt="" title="The Incredible Relative Speed of the Earth" border="0" /></a><br />Source: <a href=" title="Random Quick Facts">Random Quick Facts</a> Click Here for the Sources and to Learn More Interesting Astronomy/Earth Related Facts Text Version Along with orbiting around the sun at 66,600 mph, the Earth is also rotating at its axis at about 1,070 miles per hour. Relativistic Cosmology Back to main course page John D. Norton Department of History and Philosophy of Science University of Pittsburgh Einstein's Great Book of Universes The arrival of Einstein's general theory of relativity marked a rebirth of interest and work in cosmology, the study of the universe on the largest scale. What connected all these together was Einstein's gravitational field equations. Minkowski Spacetime Minkowski spacetime is the spacetime in which special relativity holds. This is the unsummed curvature. Einstein's equations tell us that this summed curvature equals the matter density. A Minkowski spacetime is still physically relevant to our spacetime, however. "Blue marble" image from NASA Yet in any small patch--such as an area of land the size of a city--we can ignore the curvature and apply Euclidean geometry without appreciable error. 2x + 1 = 5 x = 2 λ