Satellites observe Earth constantly.

Meaning: Satellites keep a close eye on the Earth all the time.

Choice of Words: Satellites are objects that move around Earth. Observe means to watch or look at something carefully. Earth is the planet we live on. Constantly means without stopping.

Alternative Expressions

Satellites are always looking at Earth.

Meaning: This means that satellites are constantly using their sensors and cameras to take pictures and collect data about our planet.

Choice of Words: Satellites are machines that orbit Earth. Are is a verb that means something is happening right now. Always means all the time. Looking means to see or observe something. At means to focus on something. Earth is the planet we live on.

Satellites keep a close eye on Earth.

Meaning: This means that satellites are constantly monitoring Earth and collecting information about it.

Choice of Words: Satellites are machines that orbit Earth. Keep means to hold or maintain something. A is an indefinite article that means one. Close means near or not far away. Eye means to watch or observe something. On means to be located on or near something. Earth is the planet we live on.

Satellites are constantly observing Earth.

Meaning: This means that satellites are always watching Earth and collecting data about it.

Choice of Words: Satellites are machines that orbit Earth. Are is a verb that means something is happening right now. Constantly means all the time or without stopping. Observing means to watch or examine something carefully. Earth is the planet we live on.

Related Expressions