Description

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What was that strange light in the sky? No one knows It's an unidentified flying object, or UFO. Many UFOs turn out to be airplanes or clouds. But some people say aliens visit Earth in UFOs. Could that be true? Researchers use cameras, magnetic field sensors, telescopes, radar, and other gear to find out. Get an inside look at the high-tech tools used to study UFOs.

About the Author

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Megan Cooley Peterson is a writer, editor, and bookworm. When she isn't writing or reading, you can find her watching movies or planning her next Halloween party. She lives in Minnesota with her husband and daughter.