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This interactive, online module allows learners to study the history of the discovery of black holes. Learners may work independently or in small groups to complete the activity. By completing this activity students learn the history of the... (View More)

This article contains a series of kinesthetic activities, explaining and demonstrating why stars twinkle and what astronomers can do to minimize it. The activities can be used to demonstrate how Earth's atmosphere distorts starlight and how advanced... (View More)

Audience: Middle school, Informal education
Materials Cost: Free

Gamma-ray bursts are distant explosions that briefly outshine the rest of the gamma-ray universe. In this lesson, students will follow the same procedures used by today's astronomers to determine two basic facts about gamma-ray bursts: their... (View More)

This activity is intended as a review of the concepts presented in the previous activities as well as an assessment of student understanding of the activities. Learners use the review information from the activities as they answer question and then... (View More)

In this activity, learners classify selected objects from the Hubble Deep Field based on their color and shape. They then compare their classification with a chart made by astronomers. This is activity two of four in the Hubble Deep Field Lesson... (View More)

In this activity, the problems and difficulties of determining the distances between Earth and objects in space is addressed. Learners attempt to arrange five objects from the Hubble Deep Field according to their distances from Earth. After making... (View More)

In this activity, learners practice estimation skills as they begin to explore the Hubble Deep Field image. They first give a rough estimate of the number of objects and then follow several steps, using representative sampling techniques, to improve... (View More)

This is a hands-on demonstration of the communication path between the Extreme Ultraviolet Explorer (EUVE) satellite and a scientist on Earth, where students play the parts of various satellites, ground stations, and science centers. The module... (View More)

Audience: Informal education

This interactive, computer-based activity presents a series of inquiries that allow students to discover how the colors, masses, and luminosities of stars are related. Students also investigate how these characteristics influence the life cycle of... (View More)

Audience: High school
Materials Cost: Free
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