... I normally begin by asking the class what they think would be different if the Moon didn't exist, or if the Sun were closer to Earth, or if a star exploded nearby. ... The winds would be much stronger. ... In using what-if questions in the classroom, it is worth bearing in mind that students extrapolating the effects of new scenarios will encounter two different situations: direct changes to the new version of Earth and indirect changes resulting from the direct changes. ...

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• ASP: Responsible Exploration

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• Cosmology Overview
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Astronomy Discussion Forums . ... What Really Exists Outside The Universe . ... Post Message | ... Picture a bowl of marbles. ... Each of the spheres in your marble bowl represents a single universe. Now in reality these marble spheres exist infinitly in numbers and are not limited to some sort of cosmic bowl. ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Exploring Ultimate Reality! - an Astronomy Net Exploration Forum Message
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• Re: Xephem 3.4 Compatibility With Existing Project - an Astronomy Net XEphem

... But there also exists a practical angle: in a world increasingly dependent on electricity and electronics, the "space weather" outside the atmosphere can have serious effects, in particular on human communications. Currently more than 200 communication satellites circle the Earth in synchronous orbit . ... For a view of NOAA's "space weather report," click here ; another such report, from the University of Michigan, is linked here . ... Another such event occured April 7-11, 1997 . ...

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• Why do people want to explore Mars
• To the Planets, to the Stars
• Educational Web Sites

... Abstract Open an existing SPK file for subsequent write. ... We assume that the following variables have already been assigned the proper values: body (integer) Body code for ephemeris object. center (integer) body code for the center of motion of the body . frame (string) the reference frame of the states . first ( d.p .) first valid time for which states can be computed in seconds past 2000. last ( d.p .) last valid time for which states can be computed in seconds past 2000. gm ( ...

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• CSPICE Routines: EXISTS_C
• Why does adding a WFPC2 coordinated parallel to an existing ACS/WFC result in
• The File Life Cycle

... AstroGrid Registry . ... 3.Get/Find New Registries . ... Below you will find sections about information about eXist and how it works with the Registry. eXist embedded (Moving your Data Out) . ... You could of course make backups of the data directory and after doing an upgrade or deploy simply copy back over the data directory and restart your servlet/j2ee container. ... Change the JNDI property of "reg.custom.exist.configuration" and point to this directory plus conf.xml ex: /exist/db/conf.xml. ...

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• Version, UI, and Status Information
• Introduction
• Connect to Database

... Edwin Hubble Discovers the Universe . ... The Early Universe . ... NEAR to an Asteroid . ... Excitement mounts as NASA's Near Earth Asteroid Rendezvous (NEAR) spacecraft nears launch - currently scheduled for 3:53 ET on February 16. NEAR's mission is to become the first spacecraft to rendezvous with and orbit an asteroid, the asteroid designated 433 Eros. ... Cold, distant, Pluto is the only planet in our Solar System which has not been visited by a spacecraft from Earth. ... The First Explorer . ...

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... Astronomy index . ... This tour, of the world of astronomy, physics and spaceflight, may just as well end with a light-hearted 1878 poem by the Czech poet Jan Neruda . ... Do Frogs Exist there Too ?" . ... Like moles they dig for learning. ... They call one foot, that's all. ... Do frogs exist there too?" ... star? jim ?ab?k u?en? . ... teprv jim loket jeden. ... Foot" as used here, in Czech "loket," actually means "cubit," the distance from elbow to stretched fingertips, about a foot and a half. ...

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• Starships
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• MARSES Homepage | Project Information

... Tonight's Sky . ... Sky this Month . ... An artificial comet holds secrets to Earths life . ... Early Mars bombardment likely enhanced life-supporting habitat . ... The Real Reality Show: Would aliens be anything like us? ... April 2016: the historic journey to Europa . The Real Reality Show: All about the Drake Equation . ... The Real Reality Show . ... The Real Reality Show: Could Life Exist on Europa or Titan? ... Only registered members of Astronomy.com are allowed to comment on this article. ...

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• New IBEX data show heliosphere's long-theorized bow shock does not exist |
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Program: CREATE Purpose: Creates a SET (and subsets) Category: UTILITY File: create.shl Author: K.G. Begeman Keywords: OUTSET= Name of set to create. ... N] This keyword is asked only when the set you want to create already exists. ... This item will be put in the header and will determine the coordinate system CTYPE1= Enter axis name of first axis [stop axis input] For the n_th axis the keyword will be CTYPEn=, like all the following keywords NAXIS1= Size of axis in grids. ...

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• http://www.atnf.csiro.au/computing/software/gipsy/tsk/scanaid.dc1
• Correlating the Next Set of Data Using the Existing Schedule File
• copyhd

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2010 November 14 . Multiverses: Do Other Universes Exist? ... If one or more of the multiverse hypotheses is correct, then quite possibly they do. ... An entire set of parallel universes is called a multiverse . The human eye might represent the possibility that realizations of some multiverse hypotheses might only exist in the human mind . ...

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• APOD: 2006 March 1 - Multiverses: Do Other Universes Exist?
• APOD: 2011 September 7 - J102815: A Star That Should Not Exist
• APOD: November 15, 1999 - In the Shade of a Historic Planet

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... Survey Telescopes . ... Images . ... Star Clusters . ... Usage of ESO Images and Videos . ... Usage of ESO Videos and Images . ... Stars@ESO . ... ESO Science Newsletter . ... Catch a Star 2013 . ... The pie-chart shows the starтАЩs composition: it is almost entirely made from hydrogen and helium with only a tiny trace of heavier elements. ...

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• The Effect of Continuum Variability on Spectral Indices
• The spectrum of a star that should not exist | ESO
• A star that should not exist | ESO

. You may want to open an existing file to change its contents. To do this type: ue filename . So to open the file called letter you would type: ue letter . Tip ...

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• Tip: Editing an existing file
• Referring to other command aliases
• Did You Know?

The HyperNews Linux KHG Discussion Pages . Forum: How System Calls Work on Linux/i86 . Re : the directory /usr/src/libc/syscall/ ( vijay gupta ) . Keywords: system call libc . ... The /usr/src/libc/syscall/ directory no longer exists. Instead, they files you need to modify are in the libc/sysdeps/linux/ directory. ... If you need to know more, please ask more.. ... 1. the solution to the problem by Vijay Gupta . ...

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• Goldin Statement on New Galileo Europa Images
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... The following gives the various command lines for running the program. omsource In this case the program will prompt the user to select an image file, either from a list of previously assessed files or from a directory. When the main window is displayed the user will also be able to select an existing source-list file by clicking on the sourcelist button. ... Again,the user can load a source-list by clicking on the sourcelist button. omsource imageset=... newsrclistset=... wdxset=.. ...

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• Output Files

New Opportunities 2010 and Beyond: The High-Energy/Radio Connection High Energy Missions Timeline XMM, Suzaku.. ... Hard X-ray Sky EXIST Wide-Field Hard X-ray Imaging: EXIST ·~20X more sensitive than Swift or INTEGRAL and cover full sky ·Detect ~104 sources, 10 positions, 3-600 keV spectra ·unique temporal survey: full sky imaging each orbit High Energy Telescope HET (10-600keV) (6 x 3 coded aperture telescopes; 131o x 65o FoV) Low Energy Telescope LET (3-30 ...

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• http://www.naic.edu/vscience/schedule/tpfiles/HowelltagR2737tp.pdf
• http://www.naic.edu/~astro/chicago2/talks/Lazio-Minding_the_Gaps.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/HowelltagR2737tp.ps

The porcel from Mars. On August 7, 1996 NASA held a conference devoted to the outstanding discovery of american scientists. In the meteorit, probably of marsian origin they found the traces of microorganism and other signs of past life existance on the red planet. ... The meteorite and bacteria traces (the back ground) . ... From the terrestrial fossils investigation experience it was known that these species were the products of bacteria vital functions . ...

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... NOTE TO EDITORS: GALAXY FLY-THROUGH AVAILABLE ONLINE . HUGE GALAXY STRING CHALLENGES SPACE THEORY . An enormous string of galaxies 300 million light-years long has been discovered in the remote Universe, challenging existing theories about how the Universe evolved. ... ANU astronomer Dr Paul Francis, who coordinated the international research team, said the galaxy string lay 10,800 million light-years away. ... The research was funded by NASA and the Australian National University. ...

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... Solar System . ... Planets . ... Batygin and Brown suggest the planetтАЩs existence through mathematical modelling and simulations with detailed analyses of other distant objects and their strange orbital features. ... This is not necessarily a new theory as for many years it was thought that a fifth gas planet could have been ejected from the early Solar System, 4. 5 billion years ago due to a gravitational encounter with Jupiter and Saturn, for example during the period described by the Nice Model...

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• Another Earth: science of the movie | Astronotes
• Exploring Icy Moons in Search of Life | Astronotes

OptInt PmWiki : Pm Wiki / Upgrading From Pm Wiki 1 . This page gives suggestions for upgrading an existing PmWiki 1.x installation to use PmWiki 2.0. In this page we assume that a site administrator already has a site running using PmWiki version 1.x or earlier in a somewhat standard configuration, and wants to upgrade to the 2.0 software. Important note: The normal PmWiki upgrade procedure (i.e., copy the new software over the existing one) won't work for moving from 1.x to 2.0. ...

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• OptInt PmWiki : Derived Requirements Document Outline | History
• OptInt PmWiki : PmWiki / Upgrades
• OptInt PmWiki : PmWiki / Access Keys