A tale based on an Arab legend. The stars in the sky vary in brightness. There can be many reasons for this based on processes going on inside the star or around it. The star in this story is an eclipsing binary star.

The ASPIRE Lab is now one of the most innovative and interactive science education websites available on the Internet. You will find not only fun interactive labs, but well designed and produced curriculum content, created by teachers for teachers. The powerful combination of inquiry-based content, along with interactive, hands-on labs provides a powerful visualization tool for you and your students to use. Best of all, the ASPIRE Lab is free!

This activity is a chance for students to apply the diffraction grating equation m*Λ/d = Θ to solve a real life problem: find the wavelength of given source of light. It is also useful for them to apply trigonometry to real life scenarios.

Stars can necessarily be observed only at a distance. This unit introduces the Hertzsprung-Russell diagram, an essential tool in understanding the nature of stars. You should have some understanding of the basic stellar properties of luminosity and temperature in order to get the most from the unit.

A tale about Bague and the stars from the Andes pleateau.

The story of how elements from lithium to uranium are created by stars is illustrated through animation and a hands-on periodic table in this video segment adapted from NOVA.

Background for and techniques of visual observation, electronic imaging, and spectroscopy of the Moon, planets, satellites, stars, and brighter deep-space objects. Weekly outdoor observing sessions using 8-inch diameter telescopes when weather permits. Indoor sessions introduce needed skills. Introduction to contemporary observational astronomy including astronomical computing, image and data processing, and how astronomers work. Student must maintain a careful and complete written log which is graded. In this seminar we explore the background and techniques of visual observation and imaging of the Moon, planets, and brighter deep-space objects using 8-inch telescopes. (Some sample images appear in our "photo album".) Telescope work begins with visual observing, then we advance to CCD (charge-coupled device) cameras. Each class observing session meets one evening a week. Whenever weather conditions permit us to observe outdoors we do so! In cloudy weather we'll try some astronomical computing and image processing indoors instead. Either way, virtually all the work for the seminar is done during the evening sessions, so students must attend section every week in order to pass. Past experience has been that if you're really enthusiastic about hands-on out-under-the-sky astronomy, enough to be willing to deal with dressing warmly, tinkering with equipment, and committing one evening a week, 12.409 is great fun! One student wrote, "Unlike most seminars, you will earn your units and, unlike most other MIT courses, you will look forward to doing it!" But we'll be direct: 12.409 is not for everyone, and in past years many whose interest was merely casual found themselves unwilling to devote one entire evening every week to the class. If your interest is only casual then consider whether a more typical astronomy survey subject might be a better choice, since it'll have more outside preparation time that you can rearrange at your discretion and less in-class time that you can't.

Since 1998, the American Museum of Natural History and the Hayden Planetarium have engaged in the three-dimensional mapping of the Universe. This cosmic cartography brings a new perspective to our place in the Universe and will redefine your sense of home. The Digital Universe Atlas is distributed to you via packages that contain our data products, like the Milky Way Atlas and the Extragalactic Atlas, and requires free software allowing you to explore the atlas by "flying" through it on your computer. The Digital Universe atlas is chock full of new data, including over 1 million galaxies, L and T dwarf stars, a 3-D Orion Nebula terrain model, Abell galaxy clusters, large-scale density contours, and plenty of additional data updates.

Quantitative introduction to physics of the solar system, stars, interstellar medium, the Galaxy, and Universe, as determined from a variety of astronomical observations and models. Topics: planets, planet formation; stars, the Sun, "normal" stars, star formation; stellar evolution, supernovae, compact objects (white dwarfs, neutron stars, and black holes), plusars, binary X-ray sources; star clusters, globular and open clusters; interstellar medium, gas, dust, magnetic fields, cosmic rays; distance ladder; galaxies, normal and active galaxies, jets; gravitational lensing; large scaling structure; Newtonian cosmology, dynamical expansion and thermal history of the Universe; cosmic microwave background radiation; big-bang nucleosynthesis. No prior knowledge of astronomy necessary. Not usable as a restricted elective by physics majors.

This course includes Quantitative introduction to physics of the solar system, stars, interstellar medium, the Galaxy, and Universe, as determined from a variety of astronomical observations and models. Topics: planets, planet formation; stars, the Sun, "normal" stars, star formation; stellar evolution, supernovae, compact objects (white dwarfs, neutron stars, and black holes), plusars, binary X-ray sources; star clusters, globular and open clusters; interstellar medium, gas, dust, magnetic fields, cosmic rays; distance ladder; galaxies, normal and active galaxies, jets; gravitational lensing; large scaling structure; Newtonian cosmology, dynamical expansion and thermal history of the Universe; cosmic microwave background radiation; big-bang nucleosynthesis. No prior knowledge of astronomy necessary. Not usable as a restricted elective by physics majors.

MIT offers a selection of courses to explore Physics at MIT.

This video segment adapted from NASA uses animation to illustrate the properties of meteor showers and comets. Included is are visualizations of a comet's tail and of Earth passing through a debris stream left behind by meteoroids.

Applications of physics (Newtonian, statistical, and quantum mechanics) to fundamental processes that occur in celestial objects. Includes main-sequence stars, collapsed stars (white dwarfs, neutron stars, and black holes), pulsars, supernovae, the interstellar medium, galaxies, and as time permits, active galaxies, quasars, and cosmology. Observational data discussed. No prior knowledge of astronomy is required.

Since the start of time, human beings have looked to the sky to tell time.

This humorous OLogy article introduces kids to the Sun. The big star answers 15 questions, including: Your agent told me that you're the biggest star in the universe. Is that true? I know you star types tend to be touchy about age, but how old are you? Actually, I'm curious to know how stars begin. What's your story? Let's turn to a delicate subject. How do stars die? In Hollywood, I meet a lot of people filled with hot air. What gases are inside you?

The Cassini Outreach Team has created classroom activities that teach students about the science and engineering behind the Cassini Mission to Saturn. Called "Saturn in Your Kitchen and Backyard," these activities are designed with cost in mind.

The activities contain background information, a list of required materials, the procedure required to complete the activity, and the national education standards applicable to each activity. While most activities are focused on middle school (5-8) use, they can easily be adapted to other grade levels.

The Astronomical Applications Department (AAD) of the U.S. Naval Observatory computes, from fundamental astronomical reference data, the position, brightness, and other observable characteristics of celestial bodies, as well as the circumstances of astronomical phenomena. This page describes the Earth's orbit, seasons and their relation to Milankovitch cycles. Users can also follow links to the AAD's publications, data services, software, FAQ and research.

This lithograph set features images of the planets, the sun, asteroids, comets, meteors and meteorites, the Kuiper Belt and Oort Cloud, and moons of the solar system. General information, significant dates, interesting facts and brief descriptions of the images are included.

The information and activities found in StarChild can be used to engage, excite, and educate students in your classrooms. Helps elementary school students learn about the sun and moon, planets, the asteroid belt, meteoroids and comets, astronauts and space suits, space travel and space probes, the Hubble space telescope, the Columbia accident, galaxies, the Milky Way, stars, quasars, black holes, cosmology, and dark matter.