It is a giant satellite meant to spot missile launchings from space.

A giant satellite is more difficult to accept.

"I don't see how the presence of millions of species on Earth could create a giant satellite out of nothing."

"But the other way around- Perhaps a giant satellite could help create the millions of species."

It has the giant satellite you told me of.

Once the Earth had a single giant satellite, the Moon.

Even today, the giant satellites of what was once Jupiter present us with major mysteries.

Certainly to us of Callisto, Jupiter seemed like a giant satellite.

It analyzes more than 20 000 tracks per day, from giant satellites to space debris.

Putting the giant satellites in orbit would be the hard part, he said.