1. The Solar System
Discovery Timeline
nineplanets.org -

2. The Beginning
Astronomers began using the telescope to study the sky in the 1600's.
Telescope – an instrument used to make further objects appear closer

3. Old vs. New Telescopes

4. Famous Astronomer
An astronomer named Galileo made some of the earliest discoveries with the telescope.
careful observations
detailed journal record

5. Important Dates
In 1704 the term "Solar System" first appeared in the English language.
The first object sent into space was the satellite Sputnik 1 in 1957.

6. Important Dates
In1959 the first image of the Earth from space was taken.
Neil Armstrong was the first man to walk on the moon, on July 21, 1969 during the Apollo 11 mission.
Let’s watch a video:

7. Discovery of the Planets
Timeline

8. Current Update
In 2006 Pluto was named a dwarf planet instead of a planet due to its large icy structure.

9. Telescope
2010  --  The Gran Telescopio Canarias is built on a Spain island on the top of a volcanic peak 7,438 feet above sea level.
It is the largest telescope of our time.

10. Thank you for being awesome!
Homework
Complete the timeline worksheet with a partner.
Thank you for being awesome!

11. Sources http://www.kidsastronomy.com/telescopesD.htm