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Science Science Science

Across
Father of observational astronomy who was imprisoned for his (correct) theory that the Earth revolved around the Sun
Responsible for laws of gravity and countless cartoons about people being hit in the head with apples
Worked for Edison and developed an induction motor that ran on alternating current
Discovered radium and died from radiation exposure
Pioneered the concept of vaccines and created the smallpox vaccine
Down
Discovered laws of electromagnetism and built the first electric generator
Theory of relativity.
Evolution and natural selection
Three major laws of planetary motion
Marine biologist and author whose book Silent Spring led to a ban on DDT and other pesticides