- Astronomy is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth’s atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole.
- Iberian Peninsula (Wikipedia)
The Iberian Peninsula (IPA: /aɪˈbɪəriən/), also known as Iberia, is a peninsula in South-western Europe, defining the westernmost edge of Eurasia. Separated from the rest of the European landmass by the Pyrenees, it includes the territories of Peninsular Spain and Continental Portugal, comprising most of the region, as well as the tiny adjuncts of Andorra, the British Overseas Territory of Gibraltar, and, pursuant to the traditional definition of the Pyrenees as the peninsula’s northeastern boundary, a small part of France. With an area of approximately 583,254 square kilometres (225,196 sq mi), and a population of roughly 53 million, it is the second-largest European peninsula by area, after the Scandinavian Peninsula.