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The Size Of Our World
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Build a Solar System Model
This is the updated list of astronomy books available for free download or online reading. These books andpapers cover all the areas of astrophysics, cosmology, galactic and extragalactic astronomy, solar and stellarphysics, celestial mechanics, planetary science, astrobiology, as well as some popular works. The books aremade available free of charge to the reader by their authors or publishers. Here is a categorized directory ofastronomy books. Free Astronomy Books Free Astronomy Books
Errors in the "The Big Bang Never Happened" Top | Criticism | Alternative | Miscellaneous | Bottom Eric Lerner starts his book "The Big Bang Never Happened" (hereafter BBNH) with the "errors" that he thinks invalidate the Big Bang. These are Errors in the "The Big Bang Never Happened"
Our place in the cosmos
Universcale
ASTR 1230, Whittle [Fall 2009]. Lecture Notes ASTR 1230, Whittle [Fall 2009]. Lecture Notes Last modified September 2008 by rwo Text copyright © 1998-2008 Robert W. O'Connell. All rights reserved. Opening fisheye lens picture of comet Hale-Bopp and night sky from Ujue, Spain, April 1997, copyright © J.
What existed before the big bang? What is the nature of time? Is our universe one of many? On the big questions science cannot (yet?) answer, a new crop of philosophers are trying to provide answers. Last May, Stephen Hawking gave a talk at Google's Zeitgeist Conference in which he declared philosophy to be dead. What Happened Before the Big Bang? The New Philosophy of Cosmology - Ross Andersen - Technology What Happened Before the Big Bang? The New Philosophy of Cosmology - Ross Andersen - Technology
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How Big Are Solar Flares? [VIDEO]
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Earth-class Planets Line Up | LiveScience Earth-class Planets Line Up | LiveScience In this space wallpaper, this chart compares the first Earth-size planets found around a sun-like star to planets in our own solar system, Earth and Venus. NASA's Kepler mission discovered the new found planets, called Kepler-20e and Kepler-20f. Kepler-20e is slightly smaller than Venus with a radius .87 times that of Earth. Kepler-20f is a bit larger than Earth at 1.03 times the radius of Earth.
we are listening
NRAO Very Large Array The Very Large Array, one of the world's premier astronomical radio observatories, consists of 27 radio antennas in a Y-shaped configuration on the Plains of San Agustin fifty miles west of Socorro, New Mexico. Each antenna is 25 meters (82 feet) in diameter. The data from the antennas is combined electronically to give the resolution of an antenna 36km (22 miles) across, with the sensitivity of a dish 130 meters (422 feet) in diameter. For more information, see our overview of the VLA, and the configuration schedule. NRAO Very Large Array
The Nine Planets Solar System Tour
Lunar Eclipses for Beginners Lunar Eclipses for Beginners 2004 Lunar Eclipse SequenceThe total lunar eclipse of 2004 Oct 28 was widely visible from the USA.This sequence of images captures the eclipse from start (right) to finish (left). (click to see more images) (c) Copyright 2007 by Fred Espenak Introduction
HST ISS COMPUTER OUTAGE COULD DELAY MONDAY'S SPACEX ROCKET LAUNCH - A computer outage at the International Space Station may require a spacewalk by astronauts and threatens to delay next week's launch of a commercial supply ship for NASA. NASA said Friday night that a backup computer on the outside of the orbiting lab is not responding to commands. The main computer, called an MDM or multiplexer-demultiplexer, is working fine, and the six-man crew is in no danger, officials said. But these computers control some robotic functions that would be needed for the upcoming supply run by SpaceX, one of two U.S. companies contracted by NASA to keep the space station well stocked. More (Source: Bay News 9 - Apr 12) NEXT ANTARES LAUNCH FROM WALLOPS COULD BE DELAYED - Orbital Science Corp.' HST
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Physics 20b: Introduction to Cosmology - Spring 2010 - Download free content from UC Irvine on iTunes Physics 20b: Introduction to Cosmology - Spring 2010 - Download free content from UC Irvine on iTunes Description Overview of modern scientific cosmology, including discussion of stars, the Milky Way galaxy, black holes, dark matter, the big bang, and evidence for our current understanding of the universe. Customer Reviews Great content, but audio is seriously lacking
Mysteries of Deep Space - History of the Universe Timeline
An international team, including NASA-funded researchers, using radio telescopes located throughout the Southern Hemisphere has produced the most detailed image of particle jets erupting from a supermassive black hole in a nearby galaxy. "These jets arise as infalling matter approaches the black hole, but we don't yet know the details of how they form and maintain themselves," said Cornelia Mueller, the study's lead author and a doctoral student at the University of Erlangen-Nuremberg in Germany. The new image shows a region less than 4.2 light-years across -- less than the distance between our sun and the nearest star. Radio-emitting features as small as 15 light-days can be seen, making this the highest-resolution view of galactic jets ever made. Radio telescopes capture best-ever snapshot of black hole jets Radio telescopes capture best-ever snapshot of black hole jets
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The Carl Sagan Portal
Sarah Brightman receives worldwide attention after announcing her plans to take a private spaceflight. In October 2012, global recording artist Sarah Brightman received worldwide media attention when she announced her plans to launch to space. See for yourself how extraordinary the response was.... Why a Private Mission to the Moon is Important Watch as Space Adventures' Chairman Eric Anderson describes why our private Circumlunar Mission has broad implications for the long-term future of private manned spaceflight and discusses the role private enterprise has in exploration. Space Adventures
Powers of Ten. Based on the film by Charles and Ray Eames. An Eames Office Website
NASA Science
The Scale of the Universe
Looking at the numbers above, you'll immediately notice that you are different ages on the different planets. This brings up the question of how we define the time intervals we measure. What is a day? Your Age on Other Worlds
Explore Nature» Air Resources Division-Natural Lightscapes The darker the sky, the more stars can be seen. The following simulated images depict how the constellation Orion appears under various sky conditions. Images are courtesy of GLOBE at Night. How good is your sky at home?
Ensign Software - ESPL: Dances of the Planets The planets in the heavens move in exquisite orbital patterns, dancing to the Music of the Cosmos. There is more mathematical and geometric harmony than we realize. The idea for this article is from a book Larry Pesavento shared with me. The book, 'A Little Book of Coincidence' by John Martineau, illustrates the orbital patterns and several of their geometrical relationships. .
PH1600- Introductory Astronomy - Download free content from Michigan Technological University on iTunes
New estimate for alien Earths: 2 billion in our galaxy alone
First man in space
Daylight Hours Explorer
Carl Sagan will now remind you what we get by going to space
What Are The Odds?
Gravity Probe B - Special & General Relativity Questions and Answers
Distances from the Sun
LIVE REAL TIME SATELLITE AND SPACE SHUTTLE TRACKING AND PREDICTIONS
Astronomy | Video Courses on Academic Earth
Brian Greene on string theory | Video on TED.com - StumbleUpon
Patricia Burchat sheds light on dark matter | Video on TED.com - StumbleUpon