How could a medical emergency reveal something mystical? After dying briefly from a heart attack, this man describes leaving his body, seeing beams of light entering the hospital, and realizing they ...

Explore the marvels of science with our "Top 10 Science Experiments" video! Immerse yourself in thrilling STEM challenges and hands-on experiments that reveal essential scientific concepts. Whether ...

Students will learn how to categorize matter as either pure substances or mixtures. Students will apply tests, based on physical properties of matter samples, to determine whether a mixture is ...

Photonic devices are components for creating, manipulating or detecting light. This can include laser diodes, light-emitting diodes, solar and photovoltaic cells, displays and optical amplifiers.

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EDITOR'S NOTE: When her ex-husband spirited their 2 1/2-year-old daughter to the Middle East, Maureen Dabbagh could find no one to help her — until she discovered the secret world of the ...

Voyager's Golden Record is a 12-inch gold-plated copper disk, encoded with music, sounds and images from Earth. Its aluminum cover is engraved with instructions, and a unique galactic map. Astronomer ...