Albert Einstein was one of the most influential scientists in the 20th century. Read about his contributions on the fact filled site from the Space Telescopes Science Institute.

This is an interesting and comprehensive resource for black holes. In addition to teaching you about black holes, it has quizzes to test your knowledge of the topic and a link to share your own essay on black holes.

This online exploration provides an opportunity to identify the different properties of waves and the relationship that exists between energy, wavelength, and frequency. Correlate images from the Hubble Telescope to the wavelength, color, and temperature information in the spectrum.

A few short, interactive activities on light waves can be found on this site. Numerous others links and teacher resources are posted here as well. A good background on light is offered for teachers.

Students can investigate the historical development of six different telescopes. The technical aspects of different telescopes are also presented.

Read up to the minute as well as archived news reports about the Hubble space telescope at this site. Here you can view pictures taken by the telescope as well as learn about its help in the advancement of space exploration.

Breathtaking images from the Hubble Space Telescope give a new perspective to our world.

Explore the universe and celestial phenomena made visible by Hubble. High-quality photos of planets, stars, nebulae, and galaxies, complete with individual descriptions, can be viewed online and downloaded for printing and personal use.