Harvard University
Eyes on the Sky, Feet on the Ground: The Earth's Rotation
Plenty of cool activities about the Earth's rotation can be found here, such as tracing shadows, observing shadows during different times of the day, and tracking the sun's path in the sky to understand the rotation of the earth.
California Institute of Technology
Ipac: Iras Gallery
This site from IPAC is a series of images of various celestial objects and regions as viewed in infrared light. Each photo is accompanied by a caption.
Other
Canal Kids: Ciencias (Science for Portuguese Speakers)
Colorful, engagingly written information about astronomy and biology for Portuguese-speaking English language learners. Both subjects are broken down into a broad array of related subtopics. The biology section is particularly helpful...
Fundación Cientec
Fundacion Cientec: Constelaciones Zodiacales
This site provides detailed history and star cluster location information for each zodiac constellation. Also includes links (mostly to Wikipedia pages) to additional information for keywords that appear in the articles.
Bartleby
Bartleby.com: Robert Frost
The site provides background and texts of numerous poems. Follow the links at the bottom of the page to specific poetry books to find complete text of individual poems.
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.
E-learning for Kids
E Learning for Kids: Science: Antarctica/ What Are the Different Parts of the Universe?
In this lesson, students learn about objects in the universe, including constellations, planets, meteors, asteroids, and comets.
Other
Chrome Experiments: 100,000 Stars
Zoom in and out to explore our galaxy in this interactive 3D visualization of the stellar neighborhood, including over 100,000 nearby stars.
Australian Museum
Australian Museum: The Earth: The Universe
Basic information about the universe, its origin and composition. Also includes information about galaxies, stars, and the sun.
NASA
Nasa: Space Place: What Is a Satellite Galaxy?
Find out about the behavior and characteristics of the many satellite galaxies that orbit other galaxies.
NASA
Nasa: Make a Star Finder
Learning game and activity that teaches about the constellations by making a star finder to help locate them.
NASA
Nasa: The Space Place
This site is geared towards elementary learners, but most lessons can be modified for older learners. Space-related classroom activities, printable images of Earth and space, thought-provoking Space Place Musing podcasts and math-related...
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."
NASA
Nasa: Imagine the Universe: How Big Is That Star
This 2-5 day lesson plan investigates the diameter, radius and mass among several stars in order to understand stellar behavior, particularly in a binary system.
NASA
Nasa: Imagine the Universe: Welcome to the World of X Ray Astronomy
Site recounts how X-rays were discovered as well as who discovered them. Offers graphics, links to facts on this topic, a quiz, and teacher resources.
Famous Scientists
Famous Scientists: Arthur Eddington
Learn about English astronomer, physicist, and mathematician, Arthur Eddington. He is noted for his groundbreaking research work in astrophysics.
Famous Scientists
Famous Scientists: Subrahmanyan Chandrasekhar
Learn about the Nobel Prize winner for his mathematical theory of the physical processes of importance to the structure and evolution of the stars.
NASA
Nasa: Imagine the Universe: "Burst Behind the Sun"
Site provides the article, "Burst Behind the Sun Reveals Magnetic Charm of Distant Explosion," that details on a gamma-ray burst that occurred on December 6, 2002. Provides graphics and links to learn more about gamma-ray bursts.
NASA
Nasa: Imagine the Universe: The History of Gamma Ray Astronomy
This NASA article discusses the history of gamma-ray astronomy. Related resources.
American Museum of Natural History
American Museum of Natural History: Carl Sagan and the Quest for Life in the Universe
A brief biography of American astronomer and science advocate Carl Sagan.
Space Telescope Science Institute
Space Telescope Science Institute: Amazing Space
Amazing Space promotes the "science and majestic beauty of the universe for use in the classroom." Here you can find learning activities, lesson plans, teaching guides, and helpful tips for students eager to learn about space and space...
American Museum of Natural History
American Museum of Natural History: Ology: In Pictures: Journey to the Stars
Two astrophysicists present images of stellar phenomena in this resource and explain why stars are so important to the existence of life on Earth.
Space Telescope Science Institute
Hubblesite: News Center Release Archive
This site from Hubblesite has a very long list of Hubble Space Telescope Images listed by subject. General categories of subjects include Solar System, Stars, Nebulae, Star Clusters, Novae, Supernovae, Stellar evolutionn, Galaxies, and...
CK-12 Foundation
Ck 12: Plix: Scientific Notation: Light Years to the Centaurus Constellation
[Free Registration/Login Required] Study the diagram of the Centaurus Constellation, and then answer the challenge question to check for understanding.