Space Exploration by Astronauts

President Obama

President Washington

President Kennedy

President Nixon

President Obama

Martin L. King, Jr.

Buzz Lightyear

Neil Armstrong

Food, water, oxygen

Soil, water, and food

Shelter, oxygen, and sunlight

Food, oxygen, and air

Soviet Union (Russia)

Iceland

China

USA

scientist don't know how to get them there safely and ho to get them back safely 

its not fun 

they don't have food 

there way too sleepy 

jet

engine

rocket

propellor

space shuttle

space prove

satellite

Oxygen provides energy for the station's fuel tanks.

There is not enough oxygen in space to sustain life.

Oxygen protects the space station from radiation.

Oxygen is a by-product of human respiration.

Strong solar winds would blow the astronaut away from the vehicle otherwise.

Astronauts must remain close to the vehicle to obtain the heat it provides.

Without a tether, astronauts would float away due to the lack of gravity in space.

Tethers add just enough weight to the astronaut to keep them in orbit.

To give the astronaut freedom of movement in space

To provide oxygen and protection from radiation

To make it easy to get in and out of the International Space Station

To help the astronaut perform experiments in space