Query: Physics is not a scientific discipline.

Relevant passages:
Astronomy <=SEP=> Astronomy ( from Greek : αστρονομία ) is a natural science that studies celestial objects and phenomena . It applies mathematics , physics , and chemistry , in an effort to explain the origin of those objects and phenomena and their evolution . Objects of interest include planets , moons , stars , galaxies , and comets ; while the phenomena include supernova explosions , gamma ray bursts , and cosmic microwave background radiation . More generally , all astronomical phenomena that originate outside Earth 's atmosphere are within the purview of astronomy . A related but distinct subject , physical cosmology , is concerned with the study of the Universe as a whole .   Astronomy is the oldest of the natural sciences . The early civilizations in recorded history , such as the Babylonians , Greeks , Indians , Egyptians , Nubians , Iranians , Chinese , and Maya performed methodical observations of the night sky . Historically , astronomy has included disciplines as diverse as astrometry , celestial navigation , observational astronomy and the making of calendars , but professional astronomy is now often considered to be synonymous with astrophysics .   During the 20th century , the field of professional astronomy split into observational and theoretical branches . Observational astronomy is focused on acquiring data from observations of astronomical objects , which is then analyzed using basic principles of physics . Theoretical astronomy is oriented toward the development of computer or analytical models to describe astronomical objects and phenomena . The two fields complement each other , with theoretical astronomy seeking to explain the observational results and observations being used to confirm theoretical results .   Astronomy is one of the few sciences where amateurs can still play an active role , especially in the discovery and observation of transient phenomena . Amateur astronomers have made and contributed to many important astronomical discoveries , such as finding new comets .

Physics <=SEP=> Physics ( from -LSB- φυσική , phusikḗ ( epistḗmē ) , knowledge of nature -RSB- , from φύσις phúsis `` nature '' ) is the natural science that involves the study of matter and its motion and behavior through space and time , along with related concepts such as energy and force . One of the most fundamental scientific disciplines , the main goal of physics is to understand how the universe behaves .   Physics is one of the oldest academic disciplines , perhaps the oldest through its inclusion of astronomy . Over the last two millennia , physics was a part of natural philosophy along with chemistry , biology , and certain branches of mathematics , but during the scientific revolution in the 17th century , the natural sciences emerged as unique research programs in their own right . Physics intersects with many interdisciplinary areas of research , such as biophysics and quantum chemistry , and the boundaries of physics are not rigidly defined . New ideas in physics often explain the fundamental mechanisms of other sciences while opening new avenues of research in areas such as mathematics and philosophy .   Physics also makes significant contributions through advances in new technologies that arise from theoretical breakthroughs . For example , advances in the understanding of electromagnetism or nuclear physics led directly to the development of new products that have dramatically transformed modern-day society , such as television , computers , domestic appliances , and nuclear weapons ; advances in thermodynamics led to the development of industrialization , and advances in mechanics inspired the development of calculus .   The United Nations named 2005 the World Year of Physics .