Astronomy is a natural science that studies celestial objects, such as stars, planets, comets, and galaxies, as well as the phenomena and processes that occur in outer space.

An exoplanet refers to a planet that orbits a star outside of our solar system.

The Extremely Large Telescope (ELT) is a state-of-the-art astronomical observatory currently under construction by the European Southern Observatory (ESO).

The Gemini Observatory comprises two 8.

Helioseismology, a term coined by Douglas Gough, is the study of the structure and dynamics of the Sun through its oscillations.

The Kitt Peak National Observatory (KPNO) is a United States astronomical observatory located on Kitt Peak of the Quinlan Mountains in the Arizona-Sonoran Desert on the Tohono Oʼodham Nation, 88 km west-southwest of Tucson, Arizona.

NASA (National Aeronautics and Space Administration) is an independent agency of the United States federal government responsible for the country's civilian space program and for aeronautics and aerospace research.

The U.