space-based radio astronomy
21Earth and Space Sciences — ▪ 1996 Introduction GEOLOGY AND GEOCHEMISTRY In 1995 significant developments took place in the realm of geologic mapping, which provides the foundation for the presentation and comparison of data in the Earth sciences. The most important… …
22Submillimetre astronomy — or submillimeter astronomy (see spelling differences) is the branch of observational astronomy that is conducted at submillimetre wavelengths of the electromagnetic spectrum. Astronomers place the submillimetre waveband between the far infrared… …
23Marshall Space Flight Center — George C. Marshall Space Flight Center Aerial view of the test area at MSFC …
24History of astronomy — History of science …
25Chinese space program — This article is about the Chinese space program in general. For the current Chinese space agency since 1993, see China National Space Administration. The launch of Tianlian, Xichang Center The space program of the People s Republic of China is… …
26Chinese astronomy — The Dunhuang map from the Tang Dynasty (North Polar region). This map is thought to date from the reign of Emperor Zhongzong of Tang (705–710). Founded in Dunhuang, Gansu. Constellations of the three schools were distinguished with different… …
27Infrared astronomy — is the branch of astronomy and astrophysics which deals with objects visible in infrared (IR) radiation. Visible radiation ranges from 400 nm (blue) to 700 nm (red). Longer wavelengths than 700 nm but still shorter than microwaves are called… …
28Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …
29Amateur astronomy — Amateur astronomy, a subset of astronomy, is a hobby whose participants enjoy studying and observing celestial objects. Overview The typical amateur astronomer is one who does not depend on the field of astronomy as a primary source of income or… …
30Mount Pleasant Radio Observatory — 26 metre Radio Telescope …
