What Is Space?
At approximately what altitude does space begin above Earth?
What is 100 kilometers or 62 miles?
What is the approximate temperature of space?
What is 2.725 K or -270°C?
What causes microgravity?
What is constant free fall while orbiting Earth?
This region exists between Earth and the Moon.
What is cislunar space?
What is the name of Earth’s magnetic field region?
What is the magnetosphere?
Is space a complete vacuum?
What is no, it has sparse gas molecules?
What kind of gravity does space have?
What is microgravity?
What physical condition does microgravity create?
What is weightlessness or floating?
This region includes the area within our solar system.
What is interplanetary space?
These belts surround Earth and trap radiation.
What are the Van Allen Belts?
Space is defined as the area beyond this part of Earth.
What is Earth’s atmosphere?
What is the air pressure in space?
What is near zero?
One way scientists simulate microgravity on Earth.
What are drop towers or parabolic flights?
This region lies between different solar systems.
What is interstellar space?
What do solar flares and cosmic rays produce?
What is space radiation?
The density in space is very high or very low?
What is very low?
What is required to support life in space?
What is a life support system?
Microgravity is commonly experienced in this place.
What is space or Earth orbit?
How far is the Moon from Earth?
What is about 238,855 miles?
Name one risk of space radiation to astronauts.
What is health risk or radiation sickness?
Why can't humans breathe in space?
What is because there is no oxygen?
What term describes the free-fall experience in orbit?
What is microgravity?
Is gravity zero in space?
What is no, it is microgravity?
Name one type of galaxy.
What is spiral, elliptical, or irregular?
The ionosphere is responsible for reflecting these.
What are radio waves?