Astronomy: Observations and Theories

By Coast Learning Systems - 2006

Scientists discuss the possibility that the early seeds of life on Earth were delivered by comet impacts and the reasons why it is believed that the…

By Coast Learning Systems - 2006

This lesson takes students on a journey from planet Earth to the distant galaxies and superclusters. It is illustrated with stunning computer…

By Coast Learning Systems - 2006

Explaining the concept of a scientific model, this lesson introduces the celestial sphere as a model to help describe and organize the night sky…

By Coast Learning Systems - 2006

This video lesson explains the motion of Earth around the sun and its yearly cycle. Astronomers explain the unique orbital and size relations between…

By Coast Learning Systems - 2006

A presentation on the foundations of astronomy, The Birth of Astronomy examines the observations, theories, and contributions of Aristotle, Ptolemy…

By Coast Learning Systems - 2006

Astronomers are the only scientists who do not manipulate the objects they study. Instead, they do two basic things: collect light and analyze it…

By Coast Learning Systems - 2006

Students will discover the interactions of atoms and light and what spectra can tell us about a star. The fascinating history of spectral classes and…

By Coast Learning Systems - 2006

This lesson describes the thermonuclear process in the core of the sun, identifying the layers of the interior and atmosphere showing spectacular…

By Coast Learning Systems - 2006

To determine how bright a star actually is, we need to know how far away it is. This lesson illustrates how to find distance to nearby stars and how…

By Coast Learning Systems - 2006

The study of stellar evolution is presented by examining the birth of stars. Different types of nebulae are introduced and the necessary ingredients…

By Coast Learning Systems - 2006

This lesson details the life and the death of stars. The fact that stars spend most of their lives on the main sequence consuming their nuclear fuel…

By Coast Learning Systems - 2006

This lesson describes the fascinating objects that remain after the deaths of large stars-neutron stars and black holes. Gamma-ray bursts and…

By Coast Learning Systems - 2006

Most discussions of galaxies begin with our very own Milky Way. This lesson presents the history of the study of the size and scale of our galaxy and…

By Coast Learning Systems - 2006

This video lesson looks at the classification of galaxies in general, and discusses the fact that, when these "island universes" were discovered, how…

By Coast Learning Systems - 2006

The discussion of galaxies continues in this lesson by focusing on a special group of galaxies with very energetic cores called active galaxies…

By Coast Learning Systems - 2006

Some of the most profound questions are asked and discussed in the complex subject of cosmology. What shape is the universe? How did it begin? How…

By Coast Learning Systems - 2006

Opening with a survey of the solar system and an examination of the solar nebula theory that explains how our solar system was formed, this lesson…

By Coast Learning Systems - 2006

Using Earth as the archetypical example, this lesson details the stages of differentiation, cratering, flooding, and surface evolution. The impact of…

By Coast Learning Systems - 2006

This lesson begins with an explanation of the processes that allowed the planets in this part of the solar system to grow to such large sizes. How…

By Coast Learning Systems - 2006

This examination of solar system "debris": meteorites, asteroids, and comets concludes the exploration of the solar system. Astronomers explain the…

By Coast Learning Systems - 2006

Scientists discuss the possibility that the early seeds of life on Earth were delivered by comet impacts and the reasons why it is believed that the…

By Cerebellum Corporation - 2014

Satellite footage, telescopic photos and animation are used to teach students about the many fascinating aspects of our solar system. Viewers are…

By Cerebellum Corporation - 2014

Through telescopic video and photos combined with animated graphics, students will learn about the layers of the sun and its effects on earth, the…

By PBS Distribution - 2013

Earth From Space is a groundbreaking two-hour special that reveals a spectacular new space-based vision of our planet. Produced in extensive…