Astronomy II

3. Well, A conceptual model of the gravitational field surrounding a body in space often visualized as a dip in a flat surface.
6. A powerful and luminous stellar explosion that occurs at the end of a massive star's life.
8. A band of 12 constellations through which the Sun Moon and planets appear to move across the sky.
9. An astronomical event where one celestial body temporarily blocks the light from another. 🌒
12. Speed, The speed at which light travels in a vacuum approximately 186282 miles per second (299792 km/s).
14. Star, The extremely dense collapsed core of a massive star left behind after a supernova.
15. Flare, A sudden and intense eruption of energy from the Sun's surface.
17. A planet that orbits a star outside of our solar system.
18. A highly magnetized rotating neutron star that emits beams of electromagnetic radiation from its poles.

1. Bang Theory, The leading scientific theory for how the universe began from an initial state of high density and temperature.
2. An extremely luminous and distant active galactic nucleus powered by a supermassive black hole.
4. A natural light display in the sky caused by charged particles from the Sun interacting with Earth's atmosphere.
5. The apparent path the Sun takes through the sky over the course of one year.
7. Giant, A dying star in the late stages of stellar evolution which has expanded and cooled.
10. The branch of astronomy that studies the origin evolution and eventual fate of the universe.
11. Dwarf, The dense hot remnant of a low-mass star that has exhausted its nuclear fuel.
13. Space Telescope, A famous space telescope launched in 1990 that has made many groundbreaking discoveries. 🔭
15. A point of infinite density and gravity believed to be at the center of a black hole.
16. Matter, A mysterious non-luminous substance that is thought to make up about 27% of the universe.