observational cosmology
Observational cosmology is the study of the universe through observations of celestial objects and phenomena. By using telescopes and other instruments, scientists gather data on galaxies, stars, and cosmic background radiation to understand the universe's structure, history, and evolution. Key goals include measuring distances to galaxies, determining the universe's expansion rate, and investigating its composition, including dark matter and dark energy. This field combines astronomy and physics to answer fundamental questions about the universe's origin, age, and fate, providing insights into the nature of space and time.
Additional Insights
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Observational cosmology is the branch of astronomy that studies the universe by observing distant objects, like galaxies and cosmic microwave background radiation. By analyzing light and other signals emitted by these sources, scientists gather data about the universe's structure, expansion, and history. This field helps answer fundamental questions about the universe's origins, its composition, and its fate. Through advanced telescopes and instruments, observational cosmologists piece together a narrative of how the universe has evolved from the Big Bang to the present day.