The Future Visions

A system of millions or billions of stars, together with dusts and gases.

• Galaxy

• Solar System

• gravity

The curved path of a celestial object or spacecraft around a star, planet, or moon.

• revolution

• orbit

• arbit

A group of people of one nationality or ethnic group living in a foreign city or country.

• calvary

• balcony

• colony

A colorless, odorless reactive gas

• oxygen

• carbon dioxide

• nitrogen

The envelope of gases surrounding the earth or another planet.

• stratosphere

• atmosphere

• linosphere

What's in this picture?

• space shuttle

• space station

• space ship

A cylindrical projectile that can be propelled to a great height or distance.

• rocket

• star ship

• space ship

The force that attracts a body toward the center of the earth, or toward any other physical body having mass.

• orbit

• gravity

• solar system

It is also known as the "dwarf planet".

• Mercury

• Earth

• Pluto

This is the nearest planet to the Sun.

• Mars

• Mercury

• Earth