Describes two radio telescopes run by the National Radio Astronomy Observatory (NRAO). The first telescope is called the Very Large Array (VLA) and the second is called the Very Long Baseline Array (VLBA). Both use radio interferometry....

Details of the brightest supernova of modern times - supernova 1987A in the Large Magellanic Cloud. There are many links for additional information.

The subject of the paper is the shift from an astrology-oriented astronomy towards an allegedly more objective, mathematically grounded approach to astronomy. This shift is illustrated through a close reading of Tycho Brahe's scientific...

Looks at the history of Greek astronomy from the 4th century BC on, and the major figures who contributed ideas. Includes a timeline of Greek science.

Provides an overview of ancient Greek astronomy and the major figures who played a role in developing ideas about the Universe.

A lengthy account of the life and work of Anders Celsius. Describes his studies of astronomy and his development of the Celsius temperature scale.

"We present the many satellites which have detected electromagnetic radiation through the 1960s, 70s, 80s, and 90s." Visit this site to read more about the development of satellites throughout the history of gamma-ray astronomy. Graphics...

Discusses the influences of other cultures on ancient Greek astronomers, and the advances made by the Greeks. It highlights major astronomers and those who contributed important ideas from the 6th to the 2nd centuries BC, including...

A detailed explanation of retrograde motion with three different explanations and movies to accompany them. Additional links are available for more research.

Karl Jansky discovered extraterrestrial radio waves while investigating possible sources of interference in shortwave radio communications across the Atlantic for Bell Laboratories, and is often known as the father of radio astronomy....

Learn about light properties through practice with formulas. This resource shows the relationship between the speed of light, its wavelength, and its frequency. A fairly simple, but important relationship.

This texted based article focuses on the Mongol invasions into China during the 13th century. Encyclopedia article is from Wikipedia.

The University of Virginia provides a continuation of a lecture given on astronomer Johannes Kepler, this lecture covers his different works within the field of astronomy.

This site contains information about Brahe's contributions to astronomy, and also discusses his planetary model.

Information about Ibn Rushd, an Islamic scholar who contributed to many fields of study in the twelfth century A.D.

Describes the major accomplishments of Islamic civilizations in the fields of Science and Math, i.e., the Islamic calendar, astronomy calculations, windmills, irrigation with gears, and mathematical theories.

A brief biography and discussion of Aristarchus' theories provided here.

Explore the universe like you have never seen it. Take part in classifying images of galaxies taken from the Hubble telescope archives. This is a crowdsourced scientific research project.

Lots of information about many facets of the Maya civilization. Covers the history, people, geography, languages, cities, society, cosmology, the calendar, and lots more. Includes a glossary and a timeline.

You think you love music? You have nothing on the Ancient Greek obsession. Every aspect of Greek life was punctuated by song: history, poetry, theater, sports and even astronomy. In fact, music was so important to Greek philosopher Plato...

Claiming that "mathematics was composed of four branches, namely geometry, arithmetic, astronomy, and music", Archytas made an impact on Plato and other mathematicians.

Biographical information on Aryabhata (476-550 CE), a renowned Indian mathematician who wrote about astronomy, algebra, plane trigonometry, and much more. Includes links to related resources.

Biography of Leonhard Euler (1707-1783), a famous Swiss mathematician also known for his work in optics and astronomy who left behind him a huge body of academic works.

Do you use Appleworks in your classroom? Would you like some ideas that others have used? This site presents some exemplary lessons from other teachers.