Across
- 1. Massive "islands" in space made of stars, gas, and dust held together by gravity.
- 6. The systematic investigation into a subject to discover new facts or theories.
- 8. The capacity to do work or cause change; in deep space, it's often "dark."
- 9. A state of being contrary or acting against; in astronomy, it's when a planet is on the opposite side of Earth from the Sun.
- 11. Reaching a conclusion based on evidence and reasoning rather than direct observation.
- 12. To discover or identify the presence of something using specialized equipment.
Down
- 2. Describing a universe that stays the same size and doesn't change over time (a theory later proven wrong).
- 3. A synonymous term for the universe, often implying a sense of order or beauty.
- 4. The invisible pull that keeps your feet on the ground and planets in their orbits.Expansion Massive "islands" in space made of stars, gas, and dust held together by gravity.
- 5. The whole of all space, time, matter, and energy.
- 7. The ongoing "stretching" of the fabric of space.
- 10. The "stuff" that everything is made of, possessing mass and taking up space.