Khan Academy
Khan Academy: Gallery: Structure in the Universe
The Universe is very diverse and contains many unique elements that can be observed in this gallery of pictures.
Scholastic
Scholastic: Study Jams! Science: Our Solar System: The Universe
A video and a short multiple-choice quiz on the Universe and what it is made up of.
PBS
Pbs Learning Media: Spin a Spiral Galaxy
This interactive activity from NOVA Online lets you spin a spiral galaxy, including our own Milky Way. It demonstrates that what you can learn from visible light observations of a galaxy is largely determined by the angle from which you...
Ducksters
Ducksters: Astronomy for Kids: Galaxies
Kid's learn about the science of Galaxies. Large groups of stars such as the Milky Way throughout the universe are an interesting part of astronomy.
Mocomi & Anibrain Digital Technologies
Mocomi: How Big Is the Universe?
Provides facts about the Universe, Jupiter, the Milky Way Galaxy, and Superclusters.
Other
University of Leicester: Elliptical Galaxies
Provides a general overview of elliptical galaxies, including a look at what defines an elliptical galaxy, what determines its shape, and it's physical nature.
NASA
Nasa: Imagine the Universe: Got Calcium?
This site has an article on, "The Milky Way galaxy doesn't contain any milk, but it sure does have a lot of calcium. There's enough calcium floating between the stars to fortify trillions about trillions of stars."
A&E Television
History.com: The Space Race: Interactive Universe
A virtual journey through space offers photos and facts about Earth and its neighboring planets, comets, other celestial bodies of the Solar System, and the Milky Way and Andromeda galaxies.
University of Texas at Austin
The University of Texas Mc Donald Observatory: Stars and Galaxies
Do galaxies collide? Apply concepts of scale to grasp the distances between stars and galaxies.
National Earth Science Teachers Association
Windows to the Universe the Milky Way Galaxy
Learn what Milky Way galaxy is made of and what it looks like, as well as how it relates to other known galaxies. Read "Questions and answers about the Milky Way" for further information.
European Space Agency
European Space Agency: Story of the Universe
The story of the universe is told in this engaging site by the European Space Agency. The history of European space science is timelined with dates ranging from 1066 to present day. The birth of galaxies, the big bang, and the beginnings...
Libre Text
Libre Texts: Physics: Dark Matter: Rotation Curve of Galaxy
The universe goes beyond the sun. Scientists study the amount of mass in the universe, but they also need to measure it in the far outreaches of the universe that are in the dark. Find out how they measure the mass of the entire universe.
Cosmos 4 kids
Cosmos4 Kids: You and the Universe
What is the universe? Learn about this topic in this reference article which includes a video that discusses a finding of a distant galaxy by NASA's Hubble.
University of Illinois
University of Illinois: Cosmic Mystery Tour
This multimedia tour is extremely dense with information about the origin of the universe. There are videos and simulations to assist with understanding, but it is definitely for advanced students.
University of Cambridge
University of Cambridge: Cosmology: Galaxies
This site from the Cambridge Relativity provides a brief description of the structure of the Milky Way galaxy. The parts described are the disc, bulge, and halo.
Other
An Atlas of the Universe
What does the universe look like? This website offers visitors a collection of images that serve as an "atlas" of our universe. See multiple charts showing the Earth's distance from the Sun and other stars, find helpful terms in a...
Space Telescope Science Institute
Hubble Site: Secret Lives of Galaxies
This site is provided by HubbleSite from NASA. "Telescopes around the world are beginning to harvest new clues to the origin and evolution of the universe's largest building blocks, the galaxies." Site offers links to images, video,...
NASA
Nasa: Imagine the Universe: Welcome to the World of Multiwavelength Astronomy!
This Imagine the Universe site provides an introduction into the multiwavelength universe and astronomy. Site provides graphics, links to a quiz, facts on this topic as well as teacher resources.
Science Buddies
Science Buddies: The Milky Way and Beyond: Globular Clusters
Globular clusters, compact groups of about a million stars that move around together in galaxies, are among the oldest objects found in the universe. Since they are found most galaxies and since they've been around for so long, globular...
ACT360 Media
Act Den: Sky Den
This journey will help you solve big questions about the universe. You will be able to see beyond human capabilities and will learn what scientists are discovering.
NASA
Nasa: Imagine the Universe: Dark Matter
Site provides an introduction to dark matter and what it really is. Provides links to a quiz as well as facts about dark matter. Offers links to additional resources as well as related topics.
University of Texas at Austin
The University of Texas Mc Donald Observatory: The Milky Way
Students will work in groups to make up a story and picture that explains how someone living thousands of years ago in their location might have explained the Milky Way.
University of Wisconsin
University of Wisconsin: The Constellations and Their Stars
An excellent site dedicated to the constellations and information about the objects which make them up. Contains a great deal of information about various stars, galaxies and other objects, as well as details on how best to observe them.
Natural History Museum
Natural History Museum: Our Place in the Universe
Part of a larger online exhibit on the moon and space, this site deals with one's place in the universe. The topics covered include the sun and solar system, the galaxy, and the universe.