Nicolaus Copernicus
Occupation
Astronomer, Mathematician, Clergyman
Year born
1473
Research Areas
Planets, Mechanics
Image
Credit
This work
by Unknown Artist (circa 1580)
is licensed under Creative Commons Zero v1.0 Universal
Investigate Day and Night
On Earth, night follows day and day follows night. But why?
Complete this fun investigation to find out!
Why Do Shadows Change Over Time?
Have you noticed that your shadow changes over time? The cartoon on this page shows why shadows change during the day.