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Ch 2: Astronomy Basics

About This Chapter

17 Lessons in Chapter 2: Astronomy Basics
Test your knowledge with a 30-question chapter practice test
Solar Nebular Hypothesis: Definition & Explanation

1. Solar Nebular Hypothesis: Definition & Explanation

The solar nebula theory describes how our solar system formed from a nebula about 4.5 billion years ago. This lesson will cover the aspects of the theory. Afterwards, you will have a chance to complete a quiz to test your knowledge.

Space Probe: Definition & Facts

2. Space Probe: Definition & Facts

For hundreds of years, astronomers had only the telescope to study stars and planets. Modern scientists have come a long way since then, with the invention of the space probe. In this lesson, we will learn what a space probe is as well as highlight a few noteworthy probes.

Optical Telescope: Facts & Overview

3. Optical Telescope: Facts & Overview

This lesson will explain what optical telescopes are, their history, how they work, and how they're used. We will also review the three types of telescopes, including the kinds of aberration (distortion) from which they can suffer. A short quiz will follow.

Radio Telescope: Definition, Parts & Facts

4. Radio Telescope: Definition, Parts & Facts

This lesson will explain what a radio telescope is, how radio telescopes work, the parts that make them up, what each of those parts does, and why radio telescopes are important.

Refracting Telescope: Definition, Parts & Facts

5. Refracting Telescope: Definition, Parts & Facts

This lesson will explain what a refracting telescope is and how it works, including each of the parts that make it up, and its relevance in historical and modern astronomy.

Satellite: Definition & Uses

6. Satellite: Definition & Uses

In this lesson, you will learn what a satellite is, the distinction between natural and artificial satellites, and some of their practical uses. A short quiz will follow.

Stephen Hawking: Theory, Biography & Quotes

7. Stephen Hawking: Theory, Biography & Quotes

Stephen Hawking was one of the greatest physicists of our time. His work with cosmology and black holes has led to several new discoveries and theories about the nature of existence. This lesson will cover his life and theories.

Terrestrial Planets: Definition & Characteristics

8. Terrestrial Planets: Definition & Characteristics

In this lesson, you will learn what a terrestrial planet is, what the characteristics of terrestrial planets are, and a little bit about each of the terrestrial planets in our own solar system.

The Dwarf Planet Makemake: Facts & Overview

9. The Dwarf Planet Makemake: Facts & Overview

Makemake is a dwarf planet found in the outer edges of the solar system. This lesson addresses Makemake, its characteristics, and its location in our solar system within the Kuiper Belt.

Space Shuttle Missions & Disasters

10. Space Shuttle Missions & Disasters

The space shuttle program included five space shuttles, 135 missions and two serious disasters. It lasted over 30 years. Learn more here and take a short quiz at the end.

Absolute Magnitude: Definition & Formula

11. Absolute Magnitude: Definition & Formula

In this lesson you will learn the meaning of the term 'absolute magnitude', a few examples of the apparent magnitude of objects in the sky, and an equation to calculate absolute magnitude. A short quiz will follow.

Apparent Magnitude: Definition & Formula

12. Apparent Magnitude: Definition & Formula

In this lesson you will learn the meaning of the term 'apparent magnitude', learn a few examples of the apparent magnitude of objects in the sky, and an equation to calculate apparent magnitude. A short quiz will follow.

Edwin Hubble: Discoveries, Theory & Accomplishments

13. Edwin Hubble: Discoveries, Theory & Accomplishments

Edwin Powell Hubble was an American astronomer and pioneer of observational cosmology. His observations and discoveries led to a change in the understanding of the universe. This lesson looks at his accomplishments.

Electron Orbital: Definition, Shells & Shapes

14. Electron Orbital: Definition, Shells & Shapes

In this lesson, we will talk about electron shells and the orbitals within them. We'll also explore the different shapes of orbitals and when we're finished, you can test your knowledge with a quiz.

Hubble Space Telescope: History, Facts & Discoveries

15. Hubble Space Telescope: History, Facts & Discoveries

The Hubble Space Telescope was launched into orbit in 1990 to observe stellar objects. It has gathered spectacular images and helped advance knowledge in all aspects of cosmology. This lesson will cover information about the Hubble Space Telescope.

Impact Craters: Terrestrial & Map

16. Impact Craters: Terrestrial & Map

Huge space rocks crash into our planet on a regular basis, and terrestrial impact craters are the evidence. Find out where you can see these craters, and why we don't see even more of them.

Space Station: Definition & History

17. Space Station: Definition & History

The International Space Station is an orbiting spacecraft where scientists live for extended periods of time while doing research. Learn more about this structure and test your knowledge with a quiz following the lesson.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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