Astronomy — Studying the Universe

Astronomy is the study of everything beyond Earth's atmosphere — from planets and stars to galaxies and the large-scale structure of the cosmos.

Main Sub-Fields

• Planetary astronomy — the Solar System and exoplanets.
• Stellar astronomy — stellar birth, evolution and death.
• Galactic astronomy — the Milky Way and other galaxies.
• Cosmology — origin, structure and fate of the universe.

Tools of the Trade

Optical, radio, infrared, X-ray and gravitational-wave observatories, paired with huge data pipelines and machine-learning classifiers.