EXPLORING THE SOLAR SYSTEM

Basic things needed to survive: a source of energy, liquid water, and  _____

objects that do not return to Earth

Protects an astronaut working outside a spacecraft

vehicles that cost less and are safer than sending people into space

The study of the origin, development, distribution of future life in the universe

any human-made object placed in orbit around a body in space

a space probe that travels to a distant object and is placed in orbit around the object

Earth's moon receives about the same amount of sunlight as ___

Used for communication, observation of Earth, observations of space

A space prove that passes by objects in space without landing

Liquid water is important to living things because it is essential for ____

The sun is the source of almost all ____ on Earth

What event marked the beginning of the space age?

a space probe that lands on an object's surface

a vehicle propelled by the exhaust made from burning fuel

All life-forms on Earth require nourishment, liquid water, and ___

uncrewed vehicle that travels to and obtains information about objects in space

example:  the International Space Station

Millions of ___ strike Earth's atmosphere every day.

lab in space 

Mars might be able to support life because they found evidence of 

person who travels into space

What is NASA?

Earth's atmosphere keeps pressure and ___ on Earth's surface stable

hundreds of objects that orbit Earth