http://www.exploratorium.edu/ronh/solar_system/
Thinking of Buying a Telescope? Here's Our Advice With the 2012 holiday season coming into its "home stretch," many people may be seriously considering the purchase of a telescope. You've seen telescope ads in newspapers, junk mail catalogues and on those cable TV shopping channels. The typical sales pitch might run something like this: "Bring the mysteries of the universe up close for your inspection. Study the sun, the moon, the planets, stars, comets and much, much more with this practical learning tool!
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 Are these criticisms correct? No, and they were known to be incorrect in 1991 when Lerner wrote his book. Let us look at the superclusters first. Open Port Check Tool - Test Port Forwarding on Your Router Remote Address Port Number Check a port's status by entering an address and port number above. The open port checker is a tool you can use to check your external IP address and detect open ports on your connection. This tool is useful for finding out if your port forwarding is setup correctly or if your server applications are being blocked by a firewall.
Cosmic Distance Scales - The Solar System About the Image One way to help visualize the relative distances in the solar system is to imagine a model in which the solar system is reduced in size by a factor of a billion (109). The Earth is then about 1.3 cm in diameter (the size of a grape). The Moon orbits about a foot away. The Sun is 1.5 meters in diameter (about the height of a man) and 150 meters (about a city block) from the Earth. What Happened Before the Big Bang? The New Philosophy of Cosmology - Ross Andersen - Technology 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. Brendan's On-Line Anagram Generator Brendan's On-Line Anagram Generator "Over 9000 anagram reports served!" This amazing program will take an English name, phrase, and so on, and rearrange the letters to form other English words! For example, "Robert Dole" becomes "Elder Robot". (Both phrases have two "R"s, two "O"s, one "B", and so on.)
: Planets National Aeronautics andSpace Administration Solar System ExplorationNASA Science Filters Earth-class Planets Line Up 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.