Astronomers use telescopes like refracting and reflecting telescopes to study the Solar System. The Hubble Telescope is a large reflecting telescope that takes detailed pictures of space. Some important figures that advanced our understanding of space include Isaac Newton who discovered gravity, Laika the dog who was the first animal in space, Yuri Gagarin as the first human in space, Neil Armstrong as the first person to walk on the moon, and Galileo who showed the Earth orbits the Sun.

2.  Astronomers use many tools for studying the
Solar System.
1. Telescopes: we use a telescope to stady
the Solar System. Types of telescopes:
1.1 Refracting Telescope: they use lentes.
1.2 Reflecting Telescope: they use mirrors
. Space telescopes are reflecting telescope.

3.  The Hubble Telescope is a reflecting
telescope and takes amazing pictures of the
space.

4.  Isaac Newton: He discover gravity, when an
apple fell on his head.

5.  Laika The dog: she was the first living things
that went to the space in 1957.

6.  Yuri Gagarin: he was the first person that
went to the space in 1961.

7.  Neil Amstrong: he was the first person that
landed on the moon in 1969.

8.  Galileo: he was the first person that showed
the Earth orbit The Sun.

9.  Thank for Whaching