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Grade 9 SCIENCE Space Exploration Notes

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Course
Science

Institution
9th Grade

Are you struggling to keep up with the complex concepts of space exploration, astronomy, and the evolution of stars in your high school science classes? Our study notes are here to help! Our comprehensive study guide covers all the essential topics you need to know, from the basic principles of ...

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Uploaded on April 5, 2023
Number of pages 3
Written in 2022/2023
Type Interview
Company Unknown
Person Unknown

grade 9
science
space
space exploration
astronomy
scientific discovery
planets
stars
galaxies
solar system
light years
distance
time
hertzprung russell diagram

Institution Secondary school
Education 9th Grade
Course Science
School year 1

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Grade 9 SCIENCE - Space Exploration
Discovery Through Technology
Key Points
The solar system is made up of the sun, eight planets, and various smaller celestial bodies
such as moons, asteroids, and comets.
Each planet has unique characteristics, such as size, atmosphere, and surface features.
Some planets have moons or rings.
Humans have been exploring space since the 1950s, with the first satellite, animal, and
human launches. The space race between the United States and the Soviet Union led to
major milestones such as the first human on the moon in 1969.
Space exploration is done with various technologies, such as telescopes, probes, and
rovers. These technologies have allowed scientists to learn more about our solar system and
the universe beyond.
The Hubble Space Telescope has been a major tool in space exploration, allowing
astronomers to study galaxies, stars, and planets beyond our solar system.
Space exploration has led to numerous technological advancements that have impacted our
daily lives, such as GPS and weather forecasting.
There are still many mysteries to be explored in space, such as dark matter and the
possibility of life on other planets.

Throughout history, various technologies have been used to understand and measure
astronomical phenomena. Sundials were used to measure the passage of time, while the
quadrant, developed in ancient Egypt, was used to measure the height of stars over the horizon.
The astrolabe, developed in the Arab world, was used to measure the latitude of stars. The
telescope, which is still improving today, has allowed us to create more accurate maps of our
solar system. The Merkhet, also developed in ancient Egypt, was used to chart astronomical
positions and tell the time of day. Finally, the cross-staff was used to measure the angle between
the moon and any star. These technologies have allowed us to better understand the workings of
the universe, and have paved the way for further scientific advancements.

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