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    The Sun, Center of our Solar System  new window
The Sun is the closest star to Earth and is the center of our solar system. A giant, spinning ball of very hot gas, the Sun is fueled by nuclear fusion reactions. The light from the Sun heats our planet and makes life possible. The Sun is also an active star that displays sunspots, solar flares, erupting prominences, and coronal mass ejections. These phenomena, which are all related to the Sun's magnetic field, impact our near-Earth space environment and determine our "space weather". In about five billion years, the Sun will evolve into a Red Giant, and eventually, a White Dwarf star. Many cultures have had interesting myths about the Sun, in recognition of its importance to life on Earth.

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The Sun is the closest star to Earth and is the center of our solar system. A giant, spinning ball of very hot gas, the Sun is fueled by nuclear fusion reactions. The light from the Sun heats our planet and makes life possible. The Sun is also an active star that displays sunspots, solar flares, erupting prominences, and coronal mass ejections. These phenomena, which are all related to the Sun's magnetic field, impact our near-Earth space environment and determine our "space weather". In about five billion years, the Sun will evolve into a Red Giant, and eventually, a White Dwarf star. Many cultures have had interesting myths about the Sun, in recognition of its importance to life on Earth. More new window

 
    BIG BANG : Formation of the Universe
  BIG BANG : Formation of the Universe
Ca. 13.7 billion years ago: Universe, which includes time and space, begins with Big Bang. The Big Bang is dated according to NASA. 300 thousand years after the Big Bang, hydrogen nuclei capture electrons, forming the first atoms. 600 million years a...
 
    FORMATION OF EARTH
  FORMATION OF EARTH
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets. It is sometimes referred to as the world, the Blue Planet, or b...
 
    The Nine Planets
  The Nine Planets
The Nine Planets is an overview of the history, mythology, and current scientific knowledge of each planet and the major moons in our solar system. Each page has my text and NASA's images, some have sounds and movies, most provide references to addit...
 
    Stonehenge
  Stonehenge
Stonehenge is a prehistoric monument located in the English county of Wiltshire, about 3.2 kilometres (2.0 mi) west of Amesbury and 13 kilometres (8.1 mi) north of Salisbury. One of the most famous sites in the world, Stonehenge is composed of earthw...
 
    Akhenaten, Pharaoh 18th Dynasty
  Akhenaten, Pharaoh 18th Dynasty
Akhenaten, meaning "living spirit of Aten", was known before the fifth year of his reign as Amenhotep IV (sometimes given its Greek form, Amenophis IV, and meaning Amun is Satisfied), a Pharaoh of the Eighteenth dynasty of Egypt, ruled for 17 years a...
 
    Aristarchus, Sun at center of Universe
  Aristarchus, Sun at center of Universe
Aristarchus of Samosis the first person we know of who suggested that the earth might go around the sun and not the other way around. He figured this out by looking at the shadow of the earth on the moon during an eclipse of the moon (now that Thales...
 
    Eratosthenes, Measuring the Earth
  Eratosthenes, Measuring the Earth
Eratosthenes of Cyrenewas a Greek mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexandria. He invented the discipline of geography, including the terminology...
 
    Copernicus, Earth moves around the Sun
  Copernicus, Earth moves around the Sun
Nicolaus Copernicus was the first astronomer to formulate a comprehensive heliocentric cosmology, which displaced the Earth from the center of the universe. His epochal book, De revolutionibus orbium coelestium (On the Revolutions of the Celestial Sp...
 
    Giordano Bruno, Philosopher
  Giordano Bruno, Philosopher
Giordano Bruno was an Italian Dominican friar, philosopher, mathematician and astronomer. His cosmological theories went beyond the Copernican model in proposing that the Sun was essentially a star, and moreover, that the universe was in fact infinit...
 
    Galileo Galilei, Father of Modern Science
  Galileo Galilei, Father of Modern Science
Galileo Galilei was an Italian physicist, mathematician, astronomer, and philosopher who played a major role in the Scientific Revolution. His achievements include improvements to the telescope and consequent astronomical observations, and support fo...
 
    Johannes Kepler, Laws Planetary Motion
  Johannes Kepler, Laws Planetary Motion
ohannes Kepler was a German mathematician, astronomer, and astrologer. A key figure in the 17th century scientific revolution, he is best known for his laws of planetary motion, based on his works Astronomia nova, Harmonices Mundi, and Epitome of Cop...
 
    Guillaume Le Gentil, French Astronomer
  Guillaume Le Gentil, French Astronomer
Guillaume Le Gentil was a French astronomer. He discovered what are now known as the Messier objects M32, M36 and M38, as well as the nebulosity in M8, and he was the first to catalogue the dark nebula sometimes known as Le Gentil 3 (in the constella...
 
       
         



 
 
         
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