Question

From our planet, outer space starts about 100 km above the surface. Farther away, there

are only isolated particles of gas and dust in the emptiness of the universe. Some regions

have planets and galaxies. Some scientists say that there is radiation in space, but we

cannot see it. Now, we have some powerful devices that help us see what is out there.

Humans have been curious about outer space since they noticed there was something

beyond the Earth.

The study of the stars was the foundation of past cultures and civilizations. Since the sky

was always changing, it caused fascination and curiosity. People noticed patterns in the

sun and moon in the stars and planets. Astronomy shaped their beliefs and mindsets. The

Babylonians were one of the first civilizations to register the movements of the moon

and sun. A brilliant Persian astronomer invented a giant device that accurately calculated

the Earth’s axis. me pueden esceibir la pronunciacion xfa​

Answer 1

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