![]() How much of the Earth can you see at once? What is your impression, is it a lot or a little? What are the spacecraft in the foreground attached to the International Space Station? What are they used for? Why are there two of them? How much of the East Coast is visible in the image? What cities can you identify? What bodies of water can you identify? What is the I-95 corridor, and can you see it? ![]() ![]() What do you think might be giving off all the light? Think of different sources of light.Ĭompare the image to a detailed map of the east coast of the United States. To learn more about the HDEV experiment, visit this NASA webpage.Ĭlick on the image at the top of the post to expand the view – Between camera switches, a gray and then black color slate will briefly appear. While the experiment is operational, views will typically sequence though the different cameras. HDEV includes four fixed cameras positioned to capture imagery of the Earth’s surface and its limb as seen from the ISS – one camera pointing in the direction the station is moving, two cameras aft (wake), and one camera pointing straight down at Earth (nadir). It is mounted on the External Payload Facility of the European Space Agency’s Columbus module. (Suggestions for other audio tracks are welcome:)ĭavid Bowie’s Space Oddity, sung by Canadian Astronaut Chris Hadfield on ISS ( watch his video)Ībout HDEV, from NASA: The High Definition Earth Viewing (HDEV) experiment aboard the ISS was activated April 30, 2014. We invite you to use this live video feed to get into the spirit of exploration on the frontiers of space – expand the video window (in a classroom, use a LCD projector to display on a large screen), select and play an audio file below, and look down from 260 miles above Earth’s surface. Note: ISS orbits Earth in 90 minutes, with 45 minutes of daylight followed by 45 minutes of darkness. To check, use the ISS Current Location Tracker. Note: If the image is black in the video portal below, ISS is on the night side of Earth. To determine what portion of Earth is in view, use the ‘ISS Current Location Tracker’, which was the subject of a prior post ‘ SSEP Teachable Moment – where Above the Earth is the International Space Stationn right Now?” In the portal below you can watch high definition video of your world being telemetered to Earth LIVE from the International Space Station. It is called HDEV – the High Definition Earth Viewing Experiment. You may not know this but there are video cameras on Station that look down on Earth continuously, and NASA sends the live feed back to Earth, so you can see what the astronauts are seeing right now. When you get a chance, you peer out your window, and look down on your world from space. Imagine you’re an astronaut on the International Space Station (ISS), orbiting the Earth at an altitude of about 260 miles (420 km). Music: using music to impact a visual experience ![]() Mathematics: using ratios and proportions Geography: characteristics of Earth observable from orbit – clouds, storms, land masses, bodies of water, views during the day and at night Physics and Space: a spacecraft in Low Earth Orbit as an observing platform – apparent size of Earth, apparent motion of Earth due to spacecraft speed, frequency of day/night variation Feel free to leave a comment at the bottom of the post. To Teachers: you can pass this post on to your students as a home activity, so they can watch live video of the Earth from the International Space Station.įeedback on this Teachable Moment is welcome. Photo-credit: NASA CLICK ON IMAGE TO ZOOM ![]() The East Coast of the United States at night, as seen from the International Space Station. ![]()
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