We may earn an affiliate commission when you visit our partners.

Question Reality

Cosmos

Marcelo Gleiser

This course explores the concept of reality and the physics of the sky. You will travel through the philosophies and worldviews of early civilizations to the time of early scientists such as Plato, Aristotle, and Copernicus.

You will learn how Galileo's findings with the telescope challenged the Aristotelian interpretation of the cosmos, about Galileo’s revolutionary conclusions on gravity, and Newton's universal law of gravitation.

This course will also introduce you to the scientific methods and their limitations. You will also explore the properties and behaviors of homemade pendulums.

Next, you will explore modern ideas of cosmology, of the Big Bang, and even recent speculations that our universe is not all there is. Mysteries and properties of light and how they were discovered, questioned, and confirmed through experiments over the past few hundred years through the present will also be discussed.

Enroll now

Or subscribe to Coursera Plus

And get unlimited access to Coursera

Here's a deal for you

Save money when you learn with a deal that may be relevant to this course.

All coupon codes, vouchers, and discounts are applied automatically unless otherwise noted.

Valid until March 12, 2027

Save 40% Off 3 Months

Access thousands of top-rated learning programs with a Coursera Plus monthly subscription and take 40% off 3 months for a limited time.

What's inside

Syllabus

Module 1: Cosmos: Part 1

This module explores the concept of reality and physics of the sky.

Module 2: Cosmos: Part 2

This module will introduce you to the scientific methods. You will also explore the properties and behaviors of homemade pendulums.

Traffic lights

Read about what's good

what should give you pause

and possible dealbreakers

Surveys astronomy and cosmology via the methods of the Greeks and pre-Socratics to Einstein and quantum cosmology

Explores the evolution of astronomy relating back to the findings of Galileo and Newton

Appropriate for general audiences with an interest in the history of science

No explicit requirements beyond an interest in the history of science

Save this course

Create your own learning path. Save this course to your list so you can find it easily later.

Save

Reviews summary

Cosmos, philosophy, and scientific evolution

Students say this course offers a mind-blowing perspective and a fascinating journey through the cosmos, effectively bridging ancient philosophy with modern cosmology. Learners frequently commend the highly engaging lectures and the captivating instructor who presents complex ideas in an accessible way, making it perfect for a general audience and those with no prior physics knowledge. While many appreciate the broad historical context, some students find a lack of deep scientific detail, noting the modern cosmology section was rushed and at times felt superficial, prioritizing scope over depth in advanced topics.

Effectively integrates philosophy, history, and science.

"The way they weave together philosophy, history, and science is brilliant. I loved learning about different worldviews."

"It's not just about physics; it's about how humanity has grappled with fundamental questions."

"The course connects ancient philosophy with modern cosmology."

Excellent for general audience and beginners.

"Absolutely mind-blowing! This course changed my perspective on the universe."

"Fantastic course! The way they weave together philosophy, history, and science is brilliant. Perfect for a general audience."

"I had no prior physics knowledge and still absorbed so much. An excellent course for beginners or those looking for a broad understanding."

Instructor's clear and captivating delivery.

"The instructor has a captivating way of explaining complex ideas."

"The instructor is a phenomenal storyteller, making complex topics like the Big Bang and light properties easy to grasp."

"The instructor's passion shines through, and the content is presented in such an accessible way."

Certain topics felt out of place or less relevant.

"The pendulum experiment was a nice touch, though perhaps a bit basic for someone with a physics background."

"The part about pendulums was a bit odd, seemed out of place with the grand cosmic themes."

"Some of the discussions around 'reality' were a bit too philosophical for my taste, I was hoping for more hard science."

Superficial coverage of advanced cosmology.

"I felt the modern cosmology section (Big Bang, multiverse) was a bit rushed and could have used more detail."

"While the course starts strong... I found the later modules on modern cosmology too superficial."

"It's more of a philosophy and history of science course than a physics course. Good for general interest, not for detailed scientific understanding."

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 Question Reality: Cosmos with these activities:

Explore the History of Cosmology

Show steps

Follow guided tutorials to understand the evolution of cosmological theories.

Browse courses on Cosmology

Show steps

Find tutorials on the history of cosmology.
Watch and engage with the tutorials.
Take notes and summarize the key concepts.

Read 'Cosmos' by Carl Sagan

Show steps

Gain a comprehensive perspective on the history and significance of cosmology through Sagan's classic work.

View Contact: A Novel on Amazon

Show steps

Read the book at your own pace.
Take notes and highlight key passages.
Discuss the book with others.

Review Newtonian Laws

Show steps

Recall and solidify your knowledge of Newtonian physics.

Browse courses on Newton's Laws of Motion

Show steps

Review the first law of motion.
Review the second law of motion.
Review the third law of motion.

Five other activities

Expand to see all activities and additional details

Show all eight activities

Solve Problems on Gravitational Force

Show steps

Strengthen your problem-solving abilities and reinforce your understanding of gravitational force through repetitive practice.

Browse courses on Newtonian Physics

Show steps

Find practice problems on gravitational force.
Solve the problems using the appropriate formulas.
Check your answers and identify any areas where you need improvement.

Build a Model of the Solar System

Show steps

Test your understanding of celestial bodies and their relationships by building a model of the solar system.

Browse courses on Solar System

Show steps

Gather materials for your model.
Research the relative sizes and distances of the planets.
Create a scale model of each planet.
Assemble your model and connect the planets according to their orbits.

Design a Presentation on the Big Bang Theory

Show steps

Deepen your understanding of the Big Bang Theory and develop your presentation skills by creating a captivating presentation.

Browse courses on Big Bang Theory

Show steps

Research the Big Bang Theory.
Create a storyboard for your presentation.
Design slides with clear and concise information.
Practice and refine your delivery.

Write a Summary of a Scientific Paper on Cosmology

Show steps

Enhance your comprehension and communication skills by writing a concise summary of a scientific paper on cosmology.

Browse courses on Cosmology

Show steps

Choose a scientific paper on cosmology.
Read and understand the paper thoroughly.
Identify the main arguments and findings of the paper.
Summarize the paper in your own words.

Volunteer at a Science Museum or Planetarium

Show steps

Immerse yourself in the world of cosmology and inspire others by sharing your knowledge and enthusiasm at a science museum or planetarium.

Browse courses on Science Education

Show steps

Find a local science museum or planetarium that offers volunteer opportunities.
Apply to become a volunteer.
Participate in training programs.
Lead tours and engage with visitors.

Career center

Learners who complete Question Reality: Cosmos will develop knowledge and skills that may be useful to these careers:

Astrophysicist

An Astrophysicist seeks to discover the origins and behaviors of astronomical objects. Using physics to understand the fundamentals of the universe, they help to answer questions about the evolution of galaxies and stars and study cosmic phenomena. This course on cosmology will lay the groundwork for a career in astrophysics by introducing you to foundational concepts of the discipline.

See salaries and explore the career path for Astrophysicist

Cosmologist

Cosmologists investigate the universe as a whole, examining its origin, evolution, and ultimate fate. Through the application of physics and astronomy, they work to determine the properties and behavior of the universe. This course is an excellent starting point for a career in cosmology, as it introduces the scientific methods used in the field and explores modern ideas about the Big Bang and the nature of our universe.

See salaries and explore the career path for Cosmologist

Astronomer

An astronomer utilizes telescopes and other instruments to study celestial objects, analyzing their properties, behaviors, and interactions. They explore the universe, examining everything from planets and stars to galaxies and nebulae. This course will introduce you to the basics of astronomy and provide a foundation for further study in the field.

See salaries and explore the career path for Astronomer

Geophysicist

A Geophysicist studies the physical properties and processes of the Earth. Using instruments and mathematical models, they examine the structure and dynamics of the Earth's interior, oceans, atmosphere, and surface. This course will enhance a geophysicist's understanding of the cosmos by providing a comprehensive overview of cosmology and the physics of the sky.

See salaries and explore the career path for Geophysicist

Meteorologist

A Meteorologist focuses on the study of the Earth's atmosphere, particularly weather patterns and climate. This course on cosmology can aid meteorologists by providing a deeper understanding of the physical processes governing the atmosphere, such as the role of radiation and the properties of light.

See salaries and explore the career path for Meteorologist

Astrobiologist

An Astrobiologist explores the possibility of life beyond Earth, studying the origins, evolution, and distribution of life in the universe. This course on cosmology provides a foundational understanding of the physical conditions and processes that may support life elsewhere in the cosmos.

See salaries and explore the career path for Astrobiologist

Science Teacher

A Science Teacher educates students about various scientific disciplines, including physics and astronomy. This course in cosmology can benefit science teachers by providing them with a comprehensive understanding of the cosmos and its mysteries, allowing them to effectively convey these concepts to their students.

See salaries and explore the career path for Science Teacher

Science Writer

Through writing and communication, a Science Writer conveys complex scientific concepts to a broader audience. This course in cosmology can enhance a science writer's knowledge and ability to accurately and engagingly communicate about astronomy, physics, and the nature of the universe.

See salaries and explore the career path for Science Writer

Museum curator

As the guardian of historical artifacts and artwork, a Museum Curator manages and interprets collections for educational and research purposes. This course on cosmology may aid in developing a deeper understanding of scientific principles when working with astronomy-related exhibits.

See salaries and explore the career path for Museum curator

Librarian

A Librarian assists patrons in finding, accessing, and utilizing information resources. In the context of a specialized library, such as one focused on astronomy or physics, this course in cosmology can enhance a librarian's knowledge and ability to support researchers and patrons interested in these fields.

See salaries and explore the career path for Librarian

Technical Writer

A Technical Writer creates instruction manuals, technical reports, and other documentation for a variety of audiences. In fields related to astronomy, physics, or cosmology, this course can provide a deeper understanding of the subject matter, enabling the technical writer to produce high-quality and accurate documentation.

See salaries and explore the career path for Technical Writer

Photographer

A Photographer captures and preserves images for various purposes, including scientific documentation. In the context of astronomy and cosmology, this course can provide a basic understanding of the physics of light and its implications for astrophotography.

See salaries and explore the career path for Photographer

Software Engineer

A Software Engineer designs, develops, and maintains software systems. In fields related to astronomy or cosmology, this course can provide a basic understanding of the scientific principles and computational techniques used in these disciplines, aiding in the development of specialized software tools.

See salaries and explore the career path for Software Engineer

Data Analyst

A Data Analyst collects, analyzes, and interprets data to identify trends and patterns. In the context of astronomy and cosmology, this course may provide a basic understanding of data analysis techniques used in these fields, enabling the data analyst to contribute to research and discovery.

See salaries and explore the career path for Data Analyst

Graphic Designer

A Graphic Designer creates visual concepts, using computer software or by hand, to communicate ideas. In fields related to astronomy or cosmology, this course can provide a basic understanding of the visual representation of scientific concepts, aiding in the creation of engaging and informative graphics and illustrations.

See salaries and explore the career path for Graphic Designer

Reading list

We've selected 14 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 Question Reality: Cosmos.

The Cosmic Connection

Save

Classic in the field of astronomy and great introduction to the history of the universe, from the Big Bang to the present day. It is written in a clear and engaging style and is accessible to readers of all levels.

Question Reality

Cosmos

Here's a deal for you

What's inside

Syllabus

Traffic lights

Save this course

Reviews summary

Cosmos, philosophy, and scientific evolution

Activities

Career center

Reading list

Share

Similar courses

Coursera Buyer Protection & Guarantee

7-Day Free Trial & Free Audit

14-Day Refund Guarantee

Verified Academic & Industry Partner