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Science History
The Astronomer Who Expanded the Universe
135 years since the birth of Edwin Hubble, who revealed other galaxies, demonstrated the universe's expansion, and paved the way for the Big Bang theory.
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Ask the expert
Why is the Night Sky Dark?
If the universe is infinite and filled with shining stars, we might expect a continuously bright sky. Why then is it dark at night?
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Ask the expert
Redisrupting Routes - GPS Signal Interference
GPS jamming to confuse the enemy - learn about GPS interference tactics and countermeasures.
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Science Panorama
Medical Imaging Technologies - Seeing the Invisible
Sound waves, X-rays, MRI and much sophistication: medical imaging technologies enable us to see deep inside our bodies
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