Astro edu
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Fill in the diameter of the Sun you want your model to be scaled by. You can fill in either the red bordered inches box or the green bordered millimeters box. Important: Only fill in one box. If both are filled in you will get a dialog box asking you to clear one of the boxes.
Build a Solar System Model | Exploratorium
This is the updated list of astronomy books available for free download or online reading. These books and papers cover all the areas of astrophysics, cosmology, galactic and extragalactic astronomy, solar and stellar physics, celestial mechanics, planetary science, astrobiology, as well as some popular works. The books are made available free of charge to the reader by their authors or publishers. Here is a categorized directory of astronomy 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"
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 - The Atlantic
Earth-class Planets Line Up | LiveScience
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.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.
Lunar Eclipses for Beginners
What is an eclipse of the Moon? What causes eclipses and why? How often do eclipses happen and when is the next eclipse of the Moon? You'll learn the answers to these questions and more in MrEclipse's primer on lunar eclipses.
ESA DECLARES HUGE ENVISAT SATELLITE DEAD IN SPACE - The European Space Agency declared the death of its massive Earth-observing satellite Envisat Wednesday after a month of mysterious silence from the school bus-size spacecraft. Envisat is the world's largest Earth-watching satellite for civilian use, with ESA officials touting its 10th anniversary in space earlier this year. The $2.9 billion satellite was originally designed to snap high-resolution photos of Earth for five years, but managed to last 10 years during its successful mission. More ( Source: MSNBC ) AIR FORCE'S SECRET X-37B A 'SPECTACULAR SUCCESS' - The U.S.
LIVE REAL TIME SATELLITE TRACKING AND PREDICTIONS: HST
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. Great content and the professor is very good at giving real-world analogies which are easy to comprehend. The problem is that the mic must be attached to the podium and when he walks away you can barely hear what he is saying. Would be much better if they would simply attach a mic to the prof so the audio would be consistent.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 | Science Codex
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.