Have you ever heard that the moon is made of cheese? Even though the craters on the surface of the moon resemble holes in Swiss cheese, we know that this common myth is not true. Find out how craters are formed and why they are different...

Great lesson plans covering a wide-range of science-related subjects. A wonderful resource for wonderful teachers!

The sun sometimes releases huge bursts of electrified gases into space. These bursts are called coronal mass ejections (or CMEs). When CMEs are directed towards Earth they can generate auroras, the spectacular atmospheric displays also...

Besides an introduction to exhibitions and events at the museum, the site provides a guide to stargazing, an astronomy FAQ, space news, virtual tours (see site map) and research resources (including Chinese-English star and constellation...

Did you know that ancient astronomers could measure the distance to other stars? They could also distinguish between stars and planets. How could they do that without modern technology of telescopes? See if you can discover the link...

This site contains facts about the asteroid 253 Mathilde from the National Space Science Data Center at NASA.

Space can be explored in many different ways. Read about space exploration and click on the topics on the right margin to find out how man finds out about his universe.

Kids learn about the astronauts who travel and explore outer space including spacesuits, fun facts, and famous adventurers like Buzz Aldrin, Yuri Gagarin, and Sally Ride.

In ancient times only five planets were known: Mercury, Venus, Mars, Jupiter, and Saturn. Learn about Greek astronomer Ptolemy's theory for the solar system that was to survive for fourteen centuries.

Investigate the science of radio astronomy, and create a model of a curved reflecting dish that will work like the Arecibo detector to detect electromagnetic waves. Explore risk using a risk space grid.

In this lesson, young scholars are asked to order cards showing different phases of the moon. Includes student handouts.

A collection of audio lectures from an introduction to astrophysics course taught at the University of California, Berkeley. The course discusses the solar system, stars, quantum mechanics, gravitation, and cosmology focusing on how...

Create a classroom model of the solar system while teaching about relative size of all the planets, and each planet's distance from the sun.

A detailed description of a supernova developing from a single massive star. There is a quiz, related links, animation, lesson plans, and an FAQ sheet available also.