avarustieteissä
Avaruustieteissä, commonly translated as space sciences or astronomy, is a broad field encompassing the scientific study of celestial objects, space, and the universe as a whole. It investigates phenomena originating outside Earth's atmosphere, including stars, planets, galaxies, nebulae, and the cosmic microwave background radiation. The discipline employs various methodologies, including observational astronomy, theoretical astrophysics, and space exploration through robotic probes and crewed missions.
Historically, astronomy has roots in ancient civilizations observing the night sky for navigation and calendrical purposes.
The exploration of space through satellites and spacecraft has provided invaluable data, enabling scientists to directly