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Physics & Astronomy Facts

Series of images over time of the light echo from the star known as V838 Monocerotis or V 838 Mon.
Light Fantastic

On the next hot summer day, imagine what would happen if the Sun suddenly became one million times brighter. Ice cream would quickly melt, sunscreen lotion wouldn't work very well, and that's just the ...

The Sun’s Corona

The White-Light Corona - The Corona is the Sun's outer atmosphere. It is visible during total eclipses of the Sun as a pearly white crown surrounding the Sun. The corona displays a variety of features ...
Front page of the William Gilbert
Earth's Magnetism

Most ancient civilizations were aware of the magnetic phenomenon. Sailors in the late thirteenth century used magnetized needles floating in water as primitive compasses to find their way on the sea. ...

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