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Astronomy  
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High school  
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This Hubble Space Telescope image shows an especially photogenic group of interacting galaxies called Arp 273. The larger of the spiral galaxies, also known as UGC 1810, has a disk that is distorted into a rose-like shape by the gravitational tidal... (View More)

Audience: High school, Informal education
Materials Cost: Free

These directions allow students to open different images that have been collected from the ROSAT satellite. The directions instruct the user to open the website, but first the user will need to Install Hera using the tab found under the Overview... (View More)

Audience: High school

This is a website about gravitational waves. Learners will read about how the Laser Interferometer Space Antenna (LISA) mission will detect gravitational waves.

This is a lesson about elemental spectra. Learners will compare known elemental spectra with spectra of Titan and Saturn’s rings from a spectrometer aboard the NASA Cassini spacecraft. They identify the elements visible in the planetary and lunar... (View More)

This is a lesson about emission spectra. Learners will look at various light sources (including glow sticks and christmas lights) and make conjectures about their composition. The activity is part of Project Spectra, a science and engineering... (View More)

This Hubble Space Telescope image shows what appears to be a delicate bubble of gas floating serenely in space. In actuality, the bubble is the visible remnant of a powerful supernova explosion called SNR 0509. The bubble was formed from gas being... (View More)

This website presents basic information and concepts about Cosmology and our current best understanding of the Universe. Cosmology is the scientific study of the large scale properties of the Universe as a whole. It endeavors to use the scientific... (View More)

This lesson provides a way for students to determine the relationship between the distance from a light source and its brightness. Once students discover the relationship, they can begin to understand how astronomers use this knowledge to determine... (View More)

This is a lesson about visual spectra. Learners will explore different ways of displaying visual spectra, including colored "barcode" spectra, like those produced by a diffraction grating, and line plots displaying intensity versus color, or... (View More)

This Hubble Space Telescope image captures thousands of sparkling young stars nestled within the star-forming nebula NGC 3603. This stellar "jewel box" is one of the most massive young star clusters in the Milky Way Galaxy. The image and text... (View More)