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This collection features images taken by the Chandra X-ray Observatory, including image descriptions and comparison with optical images. Search options include chronological listings, images by category, and images by interest such as... (View More)

Audience: Informal education
Materials Cost: Free

This is an activity about spacecraft radio communications. Learners will explore spacecraft radio communications concepts, including the speed of light and the time-delay for signals sent to and from spacecraft. Learners measure the time it takes... (View More)

Audience: Middle school
Materials Cost: $1 - $5 per group of students

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 is an lesson about spectrographs. Learners will build and decorate their own spectrographs using simple materials and holographic diffraction gratings. After building the spectrographs, they observe the spectra of different light sources.... (View More)

This set of two activities are about Saturn's largest moon, Titan. Learners will listen to a narrative "told" by the Huygens probe, entitled Memoirs of a Spacecraft. Next, students will listen to some of the findngs and express those findings by... (View More)

Keywords: Saturn; Titan

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)

Correlations between sea surface temperatures and the frequency and intensity of hurricanes are investigated in this lesson. The activity focuses on six named hurricanes that occurred between 1999 and 2009. Satellite data on those hurricanes, along... (View More)

This planetarium show is designed to engage visitors directly in activities and demonstrations, and is optimized for group sizes of 25 to 70 people. Show content includes general planet-finding techniques (Doppler, astrometric, etc.), an audience... (View More)

Keywords: Exoplanets