Discovering the Universe
Neil F. Comins
Eleventh Edition | ©2019
Take your students beyond the stars. Spark their curiosity as they explore the mysteries of space, uncover the science of the universe, and make sense of the unseen with interactive models, stunning visuals, and an AI Tutor to guide the way.
Try the AI TutorAchieve for Astronomy helps students make sense of scale, motion, and patterns in the universe. Through guided practice, adaptive learning, and interactive models, students learn how astronomical ideas connect to what is actually observed in the sky.
Homework in Achieve is designed to help students practice reasoning through astronomy concepts, not just complete problems. Guided support helps students understand how and why answers make sense:
Support students as they build confidence with unfamiliar or abstract concepts. These tools adapt to individual needs and encourage persistence and reflection:
Help students grasp astronomy concepts at their own pace and identify misconceptions early. Achieve assessments emphasize understanding, application, and conceptual reasoning.
Simulations and Interactive Labs provide students with engaging, hands-on opportunities to explore astronomy. By adjusting interactive parameters, students can deepen their understanding of key concepts and explore relationships within the subject.
Some concepts are best understood visually, and Achieve brings astronomy to life with stunning animations and NASA-sourced videos. Whether used in class, assigned as homework, or explored independently, these visuals engage students and help them grasp challenging ideas more effectively.
Save time preparing your astronomy course with ready-to-use teaching materials and integrated tools that simplify setup and grading.
Achieve is continually improving to meet the needs of today’s classrooms. Here’s a look at what’s coming in Spring 2026:
Explore the full lineup of updates and improvements here.
Create and customize materials for your specific course, reflecting your teaching style and course objectives.
Easily create course content that fits your teaching style and goals. From editable ebooks to custom labs and assessments, you have the flexibility to design materials that meet your unique needs.
Give students an immersive, engaging lab experience by customizing materials to match your curriculum. Whether you want to tweak existing experiments, add new animations and assessments, or create something entirely unique, Macmillan Learning’s team can help. The result? Labs that align perfectly with your course goals and support your students’ success.
Not sure where to start? Macmillan Learning experts work with you to create and customize everything your Astronomy course needs—textbooks, manuals, labs, interactive simulations, and more. From start to finish, we help bring your vision to life with materials tailored to your course and students' needs.
Support your teaching and simplify your workflow with ready-to-use tools, analytics, and expert support.
Save time with Achieve’s prebuilt and customizable resources, including assessments, test banks, lecture slides, and classroom activities—all designed to enhance your teaching without extra prep work. Explore the instructor resources available for your course through a free Achieve sample course!
Stay on top of your class's progress with powerful analytics. With Achieve’s gradebook and reporting features, you can track student performance, gain insights, and provide just-in-time support.
With iClicker, get instant feedback on student understanding and adjust lessons in real time to ensure no one falls behind.
Our team is here to help with tailored resources, training, demos, and best practices to meet your teaching goals. Need support? Schedule a demo or training anytime.

Empower student success with evidence-based product experiences in Astronomy.
See the ResearchSync Macmillan Learning tools with your LMS for easy access to assignments, grades, and course materials—all in one place.
Learn About LMS IntegrationProvide all students with affordable, day-one access to digital course materials through your LMS.
Learn About Inclusive AccessStay connected with the latest events and opportunities to help you learn, connect, and support your teaching.
Big Ideas. Real Impact. Practical Solutions.
Today’s biggest topics—AI, accessibility, workforce readiness, the economy—are too important to be reduced to empty catchphrases. Join top voices in education, policy, and economics for conversations packed with actionable insights and strategies to turn ideas into impact.
Share your teaching experience—what brings you joy, what challenges you, where you find inspiration. In just 5 minutes, your insights can help us create resources that support you and fellow educators in empowering student success.
Stay updated on trending topics, news, and valuable resources to keep you ahead in the world of Astronomy.
How can technology make learning more inclusive and engaging? Learn how Dr. Matt Evans from UW-Eau Claire uses iClicker to foster real-time interaction and deeper engagement in his physics and astronomy classrooms!
What inspires an astronomy expert to write about the universe? Meet Dr. Roger Freedman—co-author of Universe and College Physics—as he shares his journey, insights, and passion for helping students grasp the wonders of space.