Issues in astronomy

ASTRONOMY

It is the study of celestial objects such as: stars, planets, comets, nebulae, star clusters, and galaxies, it is one of the oldest  sciences  and concerned  with the revolution physics, chemistry, meteorology, and motion of celestial objects, as well as the formation and development of the universe.ASTROPHYSICS refers to the branch of astronomy; is the study of the physical processes which control matter and energy in the universe. And it is also the study of physical universe beyond the Earth’s atmosphere including the process of mapping locations and properties of the matter and radiation of the universe.As what i have research ancients before watched stars and  memorized their positions and if there is a new star appeared they record it to their star map.Today astronomers used telescopes to study stars ,planets and galaxies. Astronomers are scientists who study all objects in the universe, they use ground-base telescope like, launch spaces probes that visits other planets in the solar system, and satellite into spaces to study the universe from up above the earth's atmosphere.They study  and analyses the radiation on earth or its vicinity from constituent part of the universe.

The invention of the optical telescope greatly enhanced our view of the night sky, revealing spectacular details of the Moon and planets, and masses of previously unseen stars and nebulae.Spacecraft carry telescopes and other astronomical instruments above the Earth's atmosphere, and to other planets in our solar system. This has created whole new branches of astronomy such as X-ray and Gamma-ray astronomy. These instruments that they invented had help us people a lot like for example the radio telescopes that detect radio objects that are extremely far away and are hard or impossible to see optically, Ultraviolet is used to learn the composition of stars, Infrared is the part of the near-optical spectrum we perceive as heat rays, and these are emitted by stellar objects such as the Sun and there is so much more like X-ray, gamma rays and neutrinos.This inventions help us a lot because it help us know what is beyond our planet, if the other planet can produce life and if we can able to live there.We can able to study the stars and comets, what are they made of. I just hope that this inventions will not be the one who will destroy the peoples life.