1. Humans in Space and Space Exploration

2. 1437 – Copernicus (the sun is the center of our solar system)
Brief History:
1437 – Copernicus (the sun is the center of our solar system)
1609 – Galileo Galilee invented the telescope
(used it to proved that the Earth rotates around the sun)
100 years ago – we thought that the milky way was the
entire universe
1943 – First man in space (Yuri Gagarin)
1969 – Apollo 11 landed on the moon (Neal Armstrong)
1997 – First mars rover landed on mars
(May 2008 , Phoenix landed, text. Pg. 431)
2001 – First crew on international space station

3. Space Exploration

4. Telescopes Ground Observations naked eye (light) telescopes (light)
radio telescopes (sound waves)
gamma ray telescopes (black holes)

5. Telescopes radio telescopes x-ray telescopes (from space - radiation)
Orbital Observation
radio telescopes
x-ray telescopes (from space - radiation)
gamma ray telescopes
Hubble telescope

6. Space Station Living in Space International Space Station
It’s the largest man made thing in space
Flies at 27, 700 km/h, 350km above land
As cost 100 billion dollars so far
Completes 15.7 orbits per day at an altitude of 350 km

7. 1000s of experiments conducted
(sometimes the astronauts are the subjects)
Living in Space
Includes some tools like the Canadarm
Watch a few minutes of each video

8. Robot Exploration Space Probes
Satellites are artificial bodies placed in orbit around a planet
Purpose:
Exploration
Communication
Observation
Defense

9. Challenges of space travel
Getting there – Basically you ride a missile against the force of gravity.
 exactly the right speed, exactly the right acceleration, exactly
the right weight
Design (aerodynamics)
 for all this to happen they have to control the vibrations
New Fuel
 traditional fuel requires O2 to burn, they use Xe
 to power the batteries that run all the equipment they use a
small NUCLEAR reactor
Weightlessness
 redesign everything to fit in its place
 no small parts

10. Health Issues
Generally  every cell in our body is used to gravity, they need gravity
for normal functioning
Bone loss  Astronauts loss 2% of the their bone mass
 similar to osteoporosis
Radiation  because they are beyond the atmosphere, more of the
suns rays hit them and they have a higher rate of cancer.
Space Junk  all of the satellites and other debris is flying at a very high
velocity, 40, 000 km/h
In 2008, an astronaut accidentally let go of a tool bag…..this can still be
seen in our nights sky

11. Space Spin-offs
There are many many technologies that have been designed for space that have found their way into our every day lives.
Tang Drink  originally designed for space so
that astronauts could add water to powder to
make a tasty nutrient drink.
Golf Ball Dimples  originally designed for space, to
prevent drag (they cause the vibrations when a space ship
takes off.

12. Your Mission Use the internet to find an example of a space
technology that has improved our Earthly lives
Write a description of the technology, explain why it was designed
and describe how it improves the lives of Earthlings.
See assignment description