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This Flash-based interactive provides access to illustrations, visualizations, videos, and near-real time images of the Sun from a variety of NASA satellites. Learners can access this information to supplement other materials related to the Sun and... (View More) heliophysics. A scale tool with the size of the Earth is also presented with the solar images. (View Less)
This is a set of instructions for building a physical model. The model simulates the Sun's paths across the sky at summer solstice, winter solstice, and the spring and fall equinoxes. A bead simulates the Sun, moving along a cord, from rising along... (View More) the eastern horizon to setting on the western. The bead can be moved from path to path to demonstrate solar alignments, the solstices, and equinoxes. The model is created to be unique to the user's latitude, and is useful for including in lessons that teach about the seasons or archaeoastronomy. (View Less)
This is an activity about scale. Participants will arrange imagery of Earth and many other space objects in order of their size from smallest to largest, their distance from Earth's surface, their temperature from coolest to hottest, and/or their... (View More) age from youngest to oldest. By manipulating these images and discussing their ideas, children and adults represent and confront their own mental models of space and time. (View Less)
Learners can read about the Deep Impact mission to encounter comet Tempel 1, including the mission, the experiment, results, the comet, the team, and how the results were transmitted back to Earth. Includes pre- and post-encounter fact sheets.
This interactive website engages children in a story-based scenario that emphasizes concepts of remote sensing and how NASA scientists use satellite imagery to better understand the Earth's environmental changes. The story features a pigeon named... (View More) Amelia and is set in New York City. Amelia's owner, a young girl named Maria, receives a gift from her grandfather-a camera specially designed for strapping on to a pigeon along with copies of old photographs taken of New York City landmarks. Suddenly, Amelia's flights around the city take on new relevance; she visits the Bronx Zoo, Central Park and Battery Park to take updated pictures of those same landmarks from her "birds-eye" perspective. Through Amelia's adventures, and with some help from a NASA scientist, Maria learns about the history of aerial images, the use of images to detect changes over time, the significance of color, texture and shape in interpreting those images, and the importance of images taken from today's NASA satellites to our understanding of Earth. The story is set in New York City, chosen for its size, diversity and the visibility of prominent features in satellite imagery. (View Less)
This lithograph shows an image of Mars on the front, with informational text on the back about how the Hubble Space Telescope (HST) has been used to study Mars weather. HST took this image on March 30, 1997, just as it was making a close pass to... (View More) Earth some 60 million miles (100 million km) away. It shows Mars during the transition between spring and summer in the northern hemisphere (summer solstice). The north polar carbon dioxide (dry ice) frost cap is rapidly evaporating from solid to gas, revealing a much smaller permanent water ice cap. Bright water ice clouds are visible across the center and along the bottom of the image. (View Less)