Astronomy is the branch of science investigating stars, planets, and phenomena in the universe. Telescopes are widely used astronomical instruments, while rockets equipped with fuel that can burn in space are used to launch satellites and spacecraft. Satellites orbit stars and planets, and remote sensing from satellites is applied in geology, agriculture, forestry, and disaster management. Space probes gather information and send it back to Earth, carrying cameras and sensors to communicate remotely. Reusable spacecraft like the Space Shuttle have made space travel more affordable and sustainable.

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astronomy
Chapter 10

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 Astronomy Is a branch of
science to investigate stars
planet , their phenomena in the
universe

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the telescope has become the most
widely used astronomical instrument .
Rockets are the engine that are equipped
with fuel which can burn in space without
air. They are used to send satellites or
spacecraft into space.

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 A satellite is any object revolving around or orbiting a star or a
planet
Remote sensing is applied in
 Geology
 Agriculture
 Forestry
 Disaster management

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 A space probe is a spacecraft that
gathers information and sends it back to
the earth
 Space probes like most satellites , carry
cameras ,and other remote sensing
equipment , radio transmitters and
receive that allow them to communicate.

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 Reusable spacecraft such as the
discover have made space travel less
expensive and less wasteful.

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