Observing the space and the invention of Telescopes
The astronomical telescope
Who was the first scientist who made the astronomical telescope ?
” Galileo ” was the first scientist who made an astronomical telescope in 1609 . It was made from the lenses to collect the light in his telescope , He managed to see the mountains of the moon through his telescope .
The telescopes differ according to the type of rays that they receive such as visual light rays , infrared rays and ultraviolet rays .
Astronomers keep their telescopes in the observatories , These observatories have dome shape ceilings that are opened at night to direct the telescope towards any part of the sky .
In the observatories , The astronomers can work and telescopes are kept . The observatories are located over high mountains to obtain a clear vision for the space and monitoring it accurately .
It is the most famous space monitoring telescope that revolves around the Earth in an orbit of 593 km higher than the surface of the sea .
It is expected that Hubble telescope will be expired by 2014 , after 24 years of being operated , Hubble telescope will fall to Earth in one of its oceans for its final destination .
It provided us with the best photos of Earth and the space since 1990 and the new James web telescope will replace it .
Sputnik was the first satellite that successfully launched in an orbit around the Earth in 1957 , Several satellites and space stations were lunched in orbits around the Earth , They regularly send their photos about the Earth and the spacious universe .