click below
click below
Normal Size Small Size show me how
Astronomy Pt.2
10 cards
| Question | Answer |
|---|---|
| What is a solar nebula? | Huge, vast clouds of ice, gas, and dust |
| How much energy does blue giant stars put out? | 10,000 times as much energy as the sun |
| What are galaxies? | Collections of billions of stars |
| What is a black hole? | The end of the life cycle of some super giant stars |
| What is a light- year? | The distance light travels in one year. |
| What is the top speed of a space craft? | 150,000 miles per hour |
| What is a milky way? | A spiral galaxy |
| What is the Big Bang Theory? | The most widely accepted theory on how the universe formed |
| What is the Solar Nebular Theory? | The most widely accepted theory on how the solar system and starts formed. |
| Where do all stars start? | They start as a solar nebula that collapses, |