Worksheet: Stars, Galaxies, and the Universe
In this worksheet, we will practice describing some important objects in the universe.
Which star is closest to Earth?
- AProxima Centauri
- BBarnard’s Star
- CAlpha Centauri
- DThe Sun
The Sun is around 150 million kilometers from Earth. It takes about eight minutes for light from the Sun to reach our planet.
Light can travel 6 trillion miles in a year. What is the unit of measurement astronomers use to record the distance that light travels in one year?