Vocabulary - Our Universe

1000000000

• a million
• a billion

relating to the sky; stellar, astronomical

• celestial
• starry

to find fact, substance, or place that no one had ever known about before

• explore
• discover

far away

• distant
• nearby

to send or release something out into the air, especially gas, light, or heat

• emit
• exhaust

an extremely large group of stars and planets

• star cluster
• galaxy

very large in size, amount, or number

• measurable
• massive

a very large cloud of dust and gas that exists in outer space

• nebula
• asteroid

an exploding star that produces an extremely bright light

• supernova
• quasar

able to be seen

• visible
• feasible