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Select > Who • What • When • Where • Which • Widgets |
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Univers > 
The Universe today is very different from the Universe of the past and of the future. However, we can discover much about the past and the future from what we can currently observe. The Universe today is filled with structure and behavior that is both beautiful and puzzling. There is a very well organized Large Scale Structure apparent in the Universe that both excites and confuses Astrophysicists. The Universe is also not static, in fact we live in an Expanding Universe. Additionally, the entire Universe is permeated by The Cosmic Microwave Background Radiation which gives many clues as to the origin of the Universe.
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More on this Website >
• http://www.windows.ucar.edu/windows.html
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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,... |
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Venus : the Second Planet
Venus is the second planet from the Sun and the sixth largest. On June 8 2004, Venus will pass directly between the Earth and the Sun, appearing as a large black dot trav... |
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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... |
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Saturn, The Sixth Planet
Saturn is the sixth planet from the Sun and the second largest. In Roman mythology, Saturn is the god of agriculture. The associated Greek god, Cronus, was the son of... |
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Uranus, 7th Planet from the Sun
Uranus is the 7th planet from the Sun. It was discovered in 1781 by William Herschel and named for the Greek god personifying heaven. A blue-green gas giant, it has almos... |
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Neptune, 8th Planet from the Sun
Neptune is the eighth planet from the Sun and the fourth largest (by diameter). Neptune is smaller in diameter but larger in mass than Uranus.
In Roman mythology Nept... |
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Earth
The continents are the great land masses of the earth. There are seven continent on Earth now: Africa, Antarctica, Asia, Australia, Europe, North America, and South Ameri... |
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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 th... |
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Hipparchus, Astronomer
Hipparchus was the most important Greek astronomers of his time. He very accurately cataloged over 1,000 stars and invented the mathematical science of trigonometry. Ptol... |
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The Julian Calendar
The Julian calendar was introduced by Julius Caesar in 45 BC. It was in common use until the 1500s, when countries started changing to the Gregorian Calendar. However, so... |
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Ptolemy, Astronomer / Geographer
Claudius Ptolemy lived in Alexandria (in Egypt) from approx. 87 -150 AD. He was an astronomer, mathematician and geographer. He codified the Greek geocentric view of the... |
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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 b... |
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Tycho Brahe
Tycho Brahe was born in Skane, then in Denmark, now in Sweden. His contributions to astronomy were enormous. He not only designed and built instruments, he also calibrate... |
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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 improv... |
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Johannes Kepler, Laws Planetary Motion
Johannes Kepler is now chiefly remembered for discovering the three laws of planetary motion that bear his name published in 1609 and 1619). He also did important work in... |
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The Gregorian Calendar
The calendar used throughout the world today is the Gregorian calendar. It is sometimes called a "Christian" calendar. The Gregorian calendar is the one commonly used tod... |
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Giovanni Cassini, Astronomer
Giovanni Domenico Cassini studied mathematics and astronomy at the Jesuits and became professor of astronomy at Bologna, as well as fortress builder, at age 25. There, he... |
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Christiaan Huygens, Dutch Scientist
Christiaan Huygens came from an important Dutch family. Huygens's first publications in 1651 and 1654 considered mathematical problems. The 1651 publication Cyclometriae... |
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Herschel, Discovered Uranus - 1781
Sir Frederick William Herschel, FRS KH, German Friedrich Wilhelm Herschel, (15 November 1738 – 25 August 1822) was a German-born British astronomer and composer who becam... |
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Albert Einstein, Relativity Theory - 1905
Einstein's contributions to physics began in 1905 with three major results: the explanation of Brownian motion in terms of molecules; the explanation of the photoelectric... |
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Edwin Hubble, Big Bang Theory
Hubble had also devised a classification system for the various galaxies he observed, sorting them by content, distance, shape, and brightness; it was then he noticed... |
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Gerard Kuiper, Astronomer
Kuiper is considered to be the father of modern planetary science for his wide ranging studies of the solar system. Although he contributed to astrophysics, established t... |
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Wernher Von Braun, Inventor of the Rocket
Wernher Von Braun was one of the world's first and foremost rocket engineers and a leading authority on space travel. His will to expand man's knowledge through the explo... |
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Neil Armstrong, 1st Man on the Moon
As spacecraft commander for Apollo 11, the first piloted lunar landing mission, Armstrong gained the distinction of being the first person to step on the surface of the M... |
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Yuri Gagarin, 1st Man in Space
April 12, 1959 : Soviet cosmonaut who became the first human to travel in space. The son of a carpenter, Gagarin grew up on a collective farm in Saratov (later renamed Ga... |
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Nasa Timeline of Planetary Exploration
This chronology gives a list of a known (successful and unsuccessful) lunar and planetary missions including a few historical missions which were instrumental in the deve... |
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Sputnik 1 : First Satellite in Space
History changed on October 4, 1957, when the Soviet Union successfully launched Sputnik I. The world's first artificial satellite was about the size of a basketball, weig... |
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Apollo 11 : First Man on the Moon
The first human journey to the surface of the Moon began at Pad A, Launch Complex 39, Kennedy Space Center, Florida with the liftoff of Apollo 11 on a Saturn V booster at... |
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SpaceShipOne Makes History
21 June 2004 - First Private Manned Mission to Space. The world witnessed the dawn of a new space age today, as investor and philanthropist Pau... |
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The Encyclopedia of Space
The Encyclopedia of Astrobiology, Astronomy, and Spaceflight : An Alphabetical Guide to the Living Universe. Maintained by astronomer/author David Darling and is part of... |
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