1. What tools do we use in studying the Universe? Presentation by: Martin Benjamin V. Torres

2. Optical Telescopes 1608, credited to Hans Lippershey, German-Dutch spectacle maker Isaac Newton first practical telescope Galileo first used for astronomy astronomical telescope gathers and records light records mainly visible part of electromagnetic spectrum images magnified for proper viewing mirrors act as lens

3. Parts of a telescope objective lens – collects lots of light from a distant object and brings that light to a point or focus eyepiece/focus lens – takes the bright light from the focus and magnifies it

4. Communication satellites Communication satellites allow radio, television, and telephone Transmissions to be sent live anywhere in the world. Communication satellites are often in geostationary orbit

5. Other examples of telescopes… radio telescope – operates on radio frequency – detects radio emission Infrared – uses infrared light to detect cosmic bodies – infrared radiation is heat

6. Electromagnetic Spectrum range of all possible frequencies electromagnetic radiation radiation- energy that travels through vacuum and matter

7. Satellites a satellite is an artificial object which has been intentionally placed into orbit it is mainly use for communication

8. Astronomy satellites an Astronomy satellite is basically a very big telescope Astronomy satellites, therefore, can see into space ten times better than a telescope

9. Landers A lander is a spacecraft which descends toward and comes to rest on the surface of an astronomical body The landing occurs after atmospheric entry and the lander is first a re-entry vehicle

10. Star maps The star map was produced by the Star Maps on demand service of Mount Wilson Observatory Another source of star maps is the Starry night program for windows and Macintosh computers A star map is a map of the night sky

11. Spacecraft A space craft is a vehicle, vessel or machine to fly in outer space Spacecraft are used for communicating, earth observation, meteorology and transportation

12. Thank you for listening

13. References http://satellites.spacesim.org/english/engineer/copy/ http://www.optcorp.com/articles/optical-telescope/ http://science.howstuffworks.com/telescope1.htm http://abyss.uoregon.edu/~js/glossary/radio_telescope.html http://www2.ifa.hawaii.edu/newsletters/article.cfm?a=123 http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html http://www.nasa.gov/audience/forstudents/5-8/features/what-is-a- satellite-58.html#.VAXnOPmSzUg http://www.nasa.gov/audience/forstudents/5-8/features/what-is-a- satellite-58.html#.VAXnOPmSzUg http://satellites.spacesim.org/english/engineer/copy/ http://www.yourdictionary.com/lander http://csep10.phys.utk.edu/astr161/lect/time/maps.html http://mrsharmonscience.weebly.com/uploads/1/3/2/2/13222665/compl eted_space_tool_chart.pdf http://mrsharmonscience.weebly.com/uploads/1/3/2/2/13222665/compl eted_space_tool_chart.pdf http://www.answers.com/Q/What_is_a_spacecraft

14. Quiz 1.) It is a tool that captures and magnifies light that allows you to see far away things in detail. 2.) A moon, planet or machine that orbits a planet or star. 3.) They are small robots that explore Mars. 4.) It is used to deliver people and supplies to space. 5.) FULL SENTENCE- What is the objective lens for?