Astronomy

What happens after a supernova?
A supernova lasts between one to two years. This type of explosion usually happens because the core of the star has collapsed...
What Did Johannes Kepler Discover?
The astronomer Johannes Kepler discovered the laws of planetary motion. These laws state that the planets move in an elliptical...
What was Hercules' nickname?
Hercules was born human as a result of his father's infidelity with a mortal woman. To make the child immortal, Zeus allowed...
Why is Mars red?
The iron elements on the surface of Mars became red when they rusted, a process called oxidation. This occurs when the...
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