Astronomy Astronomy is the physical science that studies things outside the Earth’s atmosphere. Astronomers use observations of planets, stars, nebulae and galaxies to collect data and theories from physics to make sense of the whole universe. They rely entirely on observation, unlike physicists and chemists who build laboratories and conduct experiments. In the last few years, astronomers have discovered dark energy, mapped the shape of the universe, sent rovers to … [Read more...] about Inside Discovery Hall: UNK department turns students’ curiosities into careers