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disciplines
physical sciences
physics
energy
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electromagnetic radiation
light
Physical sciences/Physics/Energy/Radiation/Electromagnetic radiation/Light/Light beams/Light beam properties/Brightness
Weird & Wonderful Creatures: Amazon River Dolphins
This toothed whale lives in northern and central South America and often turns pink as it gets older!
The quest to bring light to the world
Sara Seager's search for Earth-like planets
<I>Science</I>: 'Superluminous' Supernova Brightened by Galactic Lens