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
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
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
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How Big Are Solar Flares? [VIDEO]
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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 Nine Planets Solar System Tour
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
SPACEX KICKS OFF THE YEAR WITH LAUNCH OF THAI SATELLITE - Launching for the second time in five weeks, a SpaceX Falcon 9 rocket lifted off from Cape Canaveral on Monday and successfully put a broadcasting satellite in a high-altitude for a Thai communications operator. The half-hour mission came just over one month after SpaceX tallied its first launch into geostationary transfer orbit, an orbit favored by communications satellite companies seeking to deploy spacecraft in orbits over the equator synchronized with Earth's rotation. More (Source: SpaceFlight Now - Jan 7) INDIA LAUNCHES COMMUNICATIONS SATELLITE INTO SPACE - India has successfully launched a communications satellite, the Geosynchronous Satellite Launch Vehicle (GSLV) D5, from the Satish Dhawan Space Centre in Sriharikota off the Bay of Bengal. The GSLV-D5's engine was designed and built in India, a triumph for the Indian Space Research Organisation (ISRO) which has been attempting such a feat since 2001. HST
Physics 20b: Introduction to Cosmology - Spring 2010 - Download free content from UC Irvine on iTunes Description
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
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The Carl Sagan Portal
Powers of Ten. Based on the film by Charles and Ray Eames. An Eames Office Website
The Scale of the Universe
The Days (And Years) Of Our Lives 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. Your Age on Other Worlds
Explore Nature» Air Resources Division-Natural Lightscapes
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 Roughly one out of every 37 to one out of every 70 sunlike stars in the sky might harbor an alien Earth, a new study reveals. These findings hint that billions of Earthlike planets might exist in our galaxy, researchers added. These new calculations are based in data from the Kepler space telescope, which in February wowed the globe by revealing more than 1,200 possible alien worlds, including 68 potentially Earth-size planets. The spacecraft does so by looking for the dimming that occurs when a world transits or moves in front of a star. Scientists at NASA's Jet Propulsion Laboratory in Pasadena, Calif., focused on roughly Earth-size planets within the habitable zones of their stars — that is, orbits where liquid water can exist on the surfaces of those worlds. [The Strangest Alien Planets]
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