1. Famous Scientists of Astronomy

2. Nicolaus Copernicus
Developed the Copernican theory which states that the sun is at rest at the center of the universe.

3. Galileo Galilei
Conducted experiments on free fall & telescope
Condemned to house arrest for teaching the Copernican theory.

5. Johannes Kepler
Showed that a planet moves around the Sun in an elliptical orbit

6. Sir Isaac Newton
Experiments with gravity
Three laws of motion

7. John Glenn
1921-present
First to reach supersonic speeds from LA to NY (1957)
First American to orbit the earth (1962)
Senator for Ohio
Returned to space in 1998 aboard the Discovery

8. Edwin Hubble
Showed that galaxies are moving away from us with a speed proportional to their distance.
Used the redshift of light to determine the speed of movement.

9. Albert Einstein 1879-1955 Developed the theory of relativity (E=mc2)
Urged all nations to give up nuclear weapons.

10. Stephen Hawking 1942-present
Uses wheelchair due to Lou Gehrig’s disease.
Discovered that black holes emit radiation.

11. Black Hole

12. Work Cited
Linda Webb