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NEW!
Galileo Galilei
“Dialogue
Concerning the Two Chief World Systems”
ANNO 1632
"Dialogue Concerning the Two Chief World Systems" [HTML]
[PDF] [Word]
"Dialogo sopra i due massimi sistemi del mondo"
[HTML] [PDF] [Word]
Fascinating
Fact:
It is hard to imagine the very beginning of the Universe. Physical laws
as we know them did not exist due to the presence of incredibly large
amounts of energy. There was no Light.
In a fraction of that "moment" (a quite
"relative" choice of words) following the "Big
Bang", it is supposed that our "birthing" Universe
expanded outwards from a "size" less than that of an atom, to
"something" one hundred-trillion-trillion-trillion times
larger... to the size of a grapefruit! The Big
Bang Theory states that at some time in the distant past there was nothing. A
process known as "Vacuum Fluctuation" created what
Astrophysicists call a "Singularity". From that
singularity, our Universe was born...
Astronomy
& Aerospace
AIPS
(Astronomical Image Processing System)
American Astronomical Society
Astronomical Data
Center (NASA/NSSDC)
Astronomy
Dictionary
Astronomy Magazine
Astronomy
Picture of the Day Archive
Astrophysical Journal
Astrophysics Preprints
AstroWeb (Internet
Resources)
Automated Plate
Scanner Project (APS Palomar Sky Survey)
Canada-France-Hawaii
Telescope
Canadian Astronomy Data Centre
Catania Astrophysical
Observatory - Italy
CD-ROMs from
NASA - NSSDC
Center for Advanced
Space Studies (NASA/JSC)
Clementine:
Browser, Collection,
and Project
Comet Home Page (CIW/DTM)
Conferences
(Yahoo Listing)
Digital Sky Survey
Links: (CalTech)
, (Sloan aka SDSS)
Earth and Moon Viewer
Earth From Space
Earth Introduction
Eclipse Photography and Resources
Educational
Observatory - Educational Resources
European Southern Observatory (ESO)
On-Line Information System
Extrasolar Planets Encyclopaedia
Extrasolar Visions
Face of Venus Home Page
Galaxy Catalog
Galileo Project (JPL)
Grand
Challenge Cosmology Consortium (GC3)
Harvard-Smithsonian
Center for Astrophysics
Goddard
Space Flight Center Home Page
HPCC Group/University of
Washington
GSFC/HEASARC
Home Page
Fascinating Fact:
Alpha Centauri is a
special star - not only because it is one of the closest stellar system to the
sun but also because it is one of the relatively few places in the Milky
Way Galaxy that may offer terrestrial life conditions. It's
actually a triple (3-star) system. If humanity looks
for intelligent life elsewhere, then Alpha Centauri is an excellent
candidate. Proxima Centauri (the closest star to the Earth) lies
24.924 trillion miles away, 4.29 light-years from the Sun. There
are millions of similar stars in the Milky Way Galaxy (and billions of
galaxies in the universe).
Hubble Space
Telescope (HST)
Icarus,
International Journal of Solar System Exploration
Infrared
Telescope Facility Home Page
IPAC (IR Processing &
Analysis Center/Caltech & JPL)
IPAC Online
Services (including NED)
IRAF (Image Reduction
and Analysis Facility)
IUEDR-IUE
Satellite Data Reduction Package
Jet
Propulsion Laboratory Home Page and News
Jonathan's Space Report - Latest Issue
Kitt Peak (KPNO) Observing Information
LEVEL5: A Knowledgebase for Extragalactic Astronomy and Cosmology
Lick Observatory (University of
California)
Lunar and Planetary
Institute LPI Home Page
Lunar
Eclipse Computer
Magellan:
Mission to Venus
Malin Space Science Systems
Mars Orbiting Laser
Altimeter (MOLA)
Mars Exploration (JPL)
Messier Catalog (SEDS, University
of Arizona)
Mount Wilson Observatory
NASA
(USA's National Aeronautics and Space Administration)
NED:
NASA/IPAC Extragalactic Database (see also IPAC above)
New
York Times Articles on Extrasolar Planets (registration required)
NRAO: Master
Page and Very
Large Array Schedules
NSSDC
Planetary Sciences
Out of This World Exhibition (Celestial Atlas)
PDS Geosciences Node
Planetary Data System (PDS) Home Page
(NASA/JPL)
PROS XRAY Data
Analysis Software
Regional Planetary Facility (Smithsonian)
Satellite
Space Missions
Shuttle
Imaging Radar (SIR-C)
SIMBAD Astronomical
Data Base
SkyView Image
Retrieval Facility
Sloan Digital Sky Survey (SDSS)
Soviet
Spacecraft Photos
Space Art and
NovaSpace Galleries
Space Telescope (STScI)
Space Telescope's
Digitized Sky Survey
Space Telescope Science Data
Analysis System (STSDAS)
Star*s Family of
Astronomy Resources
Starlink RAL (Rutherford Appleton
Laboratory)
Strasbourg Astronomical
Data Center (CDS)
The
Nine Planets
Virtual Sky
VLBI (JPL Space Very Long
Baseline Interferometry)
Welcome to the Planets
Windows to the Universe
Women at
the Naval Observatory: The Early Years
Yahoo's Guide to Astronomy Links
Yahoo's Guide to Space
Links
Fascinating Fact:
Our galaxy (and thus our Solar System) is "moving" (along with the rest of
the expanding and accelerating Universe) at a speed of about 1 Million
miles per hour
(that's 278 miles per second), or 1.62 Million Km per Hour (450 Km per
second)! The Earth is revolving around the Sun at about 33400 MPH
(9.3 miles per second), or 54100 KmH (15 Km per second)!
The Earth is rotating (velocity at mean land-sea-level) at about
1000 MPH (or 1620 KmH)!
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