یادداشتهای مربوط به کتابنامه ، واژه نامه و نمایه های داخل اثر
متن يادداشت
Includes bibliographical references and index
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
In recent years, there has been increased interest in our Solar System. This has been prompted by the launching of giant orbiting telescopes and space probes, the discovery of new planetary moons and heavenly bodies that orbit the Sun, and the demotion of Pluto as a planet. In one generation, our place in the heavens has been challenged, but this is not unusual. Throughout history, there have been a number of such world views. Initially, Earth was seen as the center of the universe and surrounded by orbiting planets and stars. Then the Sun became the center of the cosmos. Finally, there was no center, just a vast array of galaxies with individual stars, some with their own retinue of planets. This allowed our Solar System to be differentiated from deep-sky objects, but it didn't lose its mystery as more and more remarkable bodies were discovered within its boundaries
نام جغرافیایی به منزله موضوع
موضوع مستند نشده
Solar system, Maps
بدون عنوان
0
مقوله موضوعی
موضوع مستند نشده
NAT033000
موضوع مستند نشده
PG
موضوع مستند نشده
SCI-- 004000
موضوع مستند نشده
SCI004000
رده بندی کنگره
شماره رده
G3180
نشانه اثر
.
K36
2014eb
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )