Blazars are important topics of research in astronomy and high-energy astrophysics. Space telescopes lead to numerous discoveries in astronomy and cosmology. Physical science is subdivided into branches, including physics, chemistry, astronomy and Earth science. Physical science is subdivided into branches, including physics, chemistry, astronomy and earth science. It is an important concept in fields such as astronomy and astrophysics. This is an important concept in the fields of astronomy and astrophysics. Bhabha also encouraged research in electronics, space science, radio astronomy and microbiology. Spectrometers were developed in early studies of physics, astronomy, and chemistry. "Astronomy" and "astrophysics" are synonyms. The city contributed much to the science of astronomy. Mathematics, astronomy, and medicine already existed. Almost all of the major telescopes used in astronomy research are reflectors. The Watchers also instructed humans in metallurgy and metalworking, cosmetics, sorcery, astrology, astronomy, and meteorology. They also made many original contributions to astronomy and physics. It was also a centre of learning for mathematics and astronomy.