The first artificial satellite, Sputnik I, orbited...

• the moon.
• for 57 days.
• with a dog aboard.
• the atmosphere.

Laika, the first living being in space, was a...

• dog.
• cat.
• canary.
• rabbit.

In 1958, the United States launched its first satellite, 

• Laika I.
• Columbus I.
• Sputnik I.
• Explorer I.

By 1964, communications satellite networks sent messages around the...

• solar system.
• orbit.
• world.
• country.

Today, the number of satellites orbiting the Earth is in the...

• hundreds.
• thousands.
• billions.
• millions.

Early satellites were placed in an orbit a few hundred kilometers above the Earth's surface called a(n)...

• geostationary orbit (GEO).
• low stationary orbit (LSO).
• high Earth orbit (HEO).
• low Earth orbit (LEO).

A satellite that travels in an orbit that exactly matches the Earth's rotation is traveling in a(n)

• low Earth orbit (LEO).
• low stationary orbit (LSO).
• geostationary orbit (GEO).
• high Earth orbit (HEO).

Some satellites placed in LEO have cameras that can photograph...

• the Earth.
• the GPS.
• the first satellites.
• the GEO.

It is possible to photograph objects as small as a book from...

• GPS.
• HEO.
• LEO.
• GEO.

Photographic satellite technology was first developed by...

• the military.
• real estate developers.
• photographers.
• weather forecasters.