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Catherine Heymans and Andy Lawrence

"How do they know that?"

Modern astronomy has made some astonishing discoveries - how stars burn and how black holes form; galaxies from the edge of the universe and killer rocks right next door; where the elements come from and how the expanding universe is accelerating. But how do we know all that? The truth is that astronomy would be impossible without technology, and every advance in astronomy is really an advance in technology. But the technology by itself is not enough. We have to apply it critically with a knowledge of physics to unlock the secrets of the Universe.

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"How do they know that?"

Modern astronomy has made some astonishing discoveries - how stars burn and how black holes form; galaxies from the edge of the universe and killer rocks right next door; where the elements come from and how the expanding universe is accelerating. But how do we know all that? The truth is that astronomy would be impossible without technology, and every advance in astronomy is really an advance in technology. But the technology by itself is not enough. We have to apply it critically with a knowledge of physics to unlock the secrets of the Universe.

Each week we will cover a different aspect of Astronomical technology, matching each piece of technology to a highlight science result. We will explain how the technology works, how it has allowed us to collect astronomical data, and, with some basic physics, how we interpret the data to make scientific discoveries.

The class will consist of video lectures, weekly quizzes, and discussion forums. Each week there will be five videos, totalling approximately 40 minutes. They will be in a regular pattern - a short introduction, an example science story, an explanation of the key technology area, a look at how the technology is used in practice, and finally a look at what the future may hold.

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What's inside

Syllabus

Science and Technology
Introducing the themes of the course, and a first look at the science and technology we will study.
Telescopes and Stars
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Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Examines astronomy technology within the context of science and industry, which is standard in astronomy
Teaches astronomy students astronomy technology, which helps learners pursue higher-level astronomy work
Taught by Catherine Heymans and Andy Lawrence, who are recognized for their work in astronomy
Explores astronomy technology, which is a highly relevant physics subject
Requires no prerequisites, which accommodates beginners
Includes hands-on activities, such as weekly quizzes and discussions

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Reviews summary

Astrotech: science, technology, and discovery

According to learners, this course offers a fascinating exploration of how science and technology drive astronomical discovery. Students particularly appreciate the clear explanations of complex topics, finding the blend of physics and technology insightful. Many felt the course provides a solid foundation in understanding the tools astronomers use. However, some reviewers noted that certain sections can be quite technical, potentially requiring some prior science knowledge. Overall, it is seen as a highly engaging and well-structured introduction to the technological side of astronomy.
Wide range of topics covered.
"Covers a lot of ground, from telescopes to dark energy using various tech."
"The course touches on many different areas of astronomical technology and research, giving a good overview."
"Each week a new topic, providing a taste of different aspects of astro-tech."
"It's more of a survey course, introducing many concepts without going extremely deep into any one."
Integrates physics with tech.
"Loved the way they connected the technology directly to the scientific discoveries. The blend is perfect."
"This course really highlights the essential partnership between physics, technology, and astronomy. It's not just about telescopes, but how they enable science."
"The structure of matching technology to a science result each week was a great way to see the application of the tech."
Concepts made understandable.
"The instructor did an excellent job of explaining complex physical concepts in a way that was easy to grasp."
"I appreciated how the videos broke down difficult technological principles into understandable parts. Great clarity!"
"Made topics I thought would be intimidating feel accessible. The explanations were really clear and concise."
"The course content was explained very clearly, making it easy to follow along even without a strong prior background."
Requires some science background.
"Some sections felt quite challenging, especially if you don't have much background in physics or math."
"While generally accessible, a few parts dove into technical detail that might be tough for absolute beginners."
"Wish there was more explanation on the underlying physics required for certain modules."
"Could be a bit demanding if you haven't taken a science course in a while."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in AstroTech: The Science and Technology behind Astronomical Discovery with these activities:
Review Physics concepts
Revising concepts of classical mechanics, electricity and magnetism, optics, and modern physics will provide you with a more solid mathematical foundation for this course.
Browse courses on Physics
Show steps
  • Review textbooks or lecture notes from previous physics courses.
  • Work through practice problems and tutorials to test your understanding.
  • Attend review sessions or workshops offered by your institution or online.
Explore astronomical software and tools
Gaining familiarity with astronomical software and tools will allow you to engage more deeply with the practical aspects of the course.
Show steps
  • Identify the key astronomical software and tools used in the course.
  • Find tutorials and documentation for each software and tool.
  • Follow the tutorials and practice using the software and tools.
  • Attend workshops or online sessions on the use of astronomical software and tools.
Engage in peer discussion forums
Engaging in discussions with peers will help you clarify your understanding of the course material and gain diverse perspectives.
Show steps
  • Join online discussion forums or study groups related to the course.
  • Regularly participate in discussions by asking questions, sharing insights, and responding to others.
  • Organize study sessions with classmates to discuss challenging topics.
Four other activities
Expand to see all activities and additional details
Show all seven activities
Volunteer at a local observatory or science museum
Volunteering at an observatory or science museum will provide you with hands-on experience and connect you with professionals in the field.
Show steps
  • Identify local observatories or science museums that offer volunteer opportunities.
  • Contact the organizations to inquire about volunteer positions.
  • Attend training sessions and learn about the organization's mission and procedures.
  • Assist with tasks such as guiding visitors, conducting demonstrations, or supporting educational programs.
Develop a presentation on a chosen topic
Creating a presentation on a topic of your choice will allow you to delve deeper into the subject matter and improve your communication skills.
Show steps
  • Choose a specific topic related to the course that interests you.
  • Research and gather information from credible sources.
  • Organize your content into a logical structure with an introduction, main body, and conclusion.
  • Create visual aids such as slides or posters to support your presentation.
  • Practice delivering your presentation and seek feedback from others.
Participate in astronomy-related competitions
Participating in astronomy-related competitions will challenge your knowledge, foster teamwork, and showcase your abilities.
Show steps
  • Research and identify astronomy-related competitions that align with your interests.
  • Form a team with classmates or individuals outside the course.
  • Develop a project or solution that meets the competition's requirements.
  • Submit your entry and actively participate in the competition.
Contribute to open-source astronomical projects
By contributing to open-source astronomical projects, you will gain practical experience, collaborate with others, and support the advancement of the field.
Show steps
  • Identify open-source astronomical projects on platforms such as GitHub.
  • Review the project's documentation and codebase.
  • Identify a specific area where you can contribute your skills.
  • Submit pull requests with your contributions and engage with the project's community.

Career center

Learners who complete AstroTech: The Science and Technology behind Astronomical Discovery will develop knowledge and skills that may be useful to these careers:
Astronomer
Studying the works of an Astronomer and learning how the technology behind their tools works can help inform your decisions as to how you move forward with your own research in the field. How telescopes are used to make images in different colors, or how space can be used to hunt for black holes is crucial information for an effective Astronomer to know. As this course covers both of these, and more, it would be a helpful guide in your work.
Astrophysicist
In your role as an Astrophysicist, you will often analyze data collected from detectors, and spectroscopy. This course can provide you with the essential knowledge of how these tools work, and how to interpret the data that you receive from them. It also goes over some of the applications of these technologies in the field today, which can inform your own research.
Spacecraft Engineer
Technology is crucial to a Spacecraft Engineer's role, as they are responsible for the engineering of all kinds of spacecraft, from the ones that go to Mars, to the ones that orbit the Earth so that we can enjoy satellite television. This course gives a broad overview of astronomical technology, which would help you excel in your role as it will give you background knowledge on the kinds of technologies used to explore space.
System Engineer
A key part of being a Systems Engineer is understanding the technologies involved in the systems that you're working on. Given that this course offers a broad overview of astronomical technologies, it would be a solid foundation to help you in this role and provide you with some of the knowledge required to succeed.
Electrical Engineer
Electrical Engineers are responsible for designing, developing, and testing electrical equipment which often involves the use of computers. This course delves into the subject of how computers are used and why they are so crucial in the field of astronomy, which would be a helpful learning resource.
Aerospace Engineer
An Aerospace Engineer designs aircraft, spacecraft, satellites, and missiles, and has an understanding of the technology used to help build and power them. By offering an overview of astronomical technology, this course can be a helpful introduction to the type of technology used to enable space exploration.
Computer Scientist
Having knowledge about how computers are used in the field of astronomy is key to being a successful Computer Scientist. There is a module in this course that delves into this and will help you in your role as a Computer Scientist.
Robotics Engineer
Robotics Engineers design, construct, operate, and maintain robots. Having a foundational knowledge of the technology used in space exploration would be helpful in this role, as this course can provide.
Data Analyst
As a Data Analyst, you must be able to investigate, clean, analyze, and model data. This course offers information into how detectors, and spectroscopy are used to collect data in the field of astronomy. This can be helpful as it gives you deeper insight into some of the data collection methods involved.
Science Writer
Science Writers are usually expected to have a strong background in science. This course will help you build a foundation in astronomical technology which can only enhance your credibility as a Science Writer.
Software Engineer
As a Software Engineer, you must be able to design, develop, test and deploy software applications. Having a foundational knowledge of the technology used in space exploration would be helpful in this role, as this course can provide.
Computational Scientist
Computational Scientists focus on developing and applying computational techniques to understand and solve complex scientific problems. This course offers information into how detectors, and spectroscopy are used to collect data in the field of astronomy. This can be helpful as it gives you deeper insight into some of the data collection methods involved.
Physicist
As a Physicist, a strong understanding of the laws of physics is crucial to your role. As such, this course offers information that can contribute to your foundational knowledge as it will help you understand how science and technology are used to make discoveries in the field of astronomy.
Geoscientist
Geoscientists study the Earth's physical structure and the processes shaping it. This course will help you build a foundation in astronomical technology which can only enhance your credibility as a Geoscientist. Gaining knowledge on how technology has allowed us to collect astronomical data can also help broaden your perspective in the field.
Biologist
Biologists study living organisms and their life processes. This course will help you build a foundation in astronomical technology which can only enhance your credibility as a Biologist. Gaining knowledge on how technology has allowed us to collect astronomical data can also help broaden your perspective in the field.

Reading list

We've selected 13 books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in AstroTech: The Science and Technology behind Astronomical Discovery.
This textbook provides a comprehensive introduction to galaxies. It valuable resource for students who want to learn more about the science behind astronomical discoveries.
This textbook provides a comprehensive introduction to astronomy. It valuable resource for students who want to learn more about the science behind astronomical discoveries.
This textbook provides a comprehensive introduction to astrophysics, covering topics such as the structure and evolution of stars, galaxies, and the universe. It valuable resource for students who want to learn more about the science behind astronomical discoveries.
Provides a popular-level introduction to astrophysics. It valuable resource for students who want to learn more about the science behind astronomical discoveries.
Provides a popular-level introduction to the theory of time. It valuable resource for students who want to learn more about the science behind astronomical discoveries.
Provides a popular-level introduction to the Higgs boson. It valuable resource for students who want to learn more about the science behind astronomical discoveries.
Provides a popular-level introduction to cosmology. It valuable resource for students who want to learn more about the science behind astronomical discoveries.
Provides a popular-level introduction to the nature of reality. It valuable resource for students who want to learn more about the science behind astronomical discoveries.
Provides a popular-level introduction to the universe. It valuable resource for students who want to learn more about the science behind astronomical discoveries.
Provides a popular-level introduction to the history of time. It valuable resource for students who want to learn more about the science behind astronomical discoveries.
Provides a popular-level introduction to black holes and the theory of relativity. It valuable resource for students who want to learn more about the science behind astronomical discoveries.
Provides a comprehensive overview of the first galaxies in the universe. It valuable resource for students who want to learn more about the science behind astronomical discoveries.

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