earth
- The Earth is the only planet in our solar system not to be named after a Greek or Roman deity. The Earth was formed approximately 4.54 billion years ago and is the only known planet to support life.
2. Mass: The earth is 5,972,190,000,000,000 billion kg
3. The Earth’s rotation is gradually slowing down.
4. The Earth was once believed to be the centre of the universe
5. Earth has a powerful magnetic field.
6. There is only one natural satellite of the planet Earth.
the sun
7. The Sun is over 300000 times larger than earth.
compare the sun to earth.
LIFE
8. You can't cry in space because your tears won't ever fall.
9. In 1977, we received a signal from deep space that lasted 72 seconds. We still don't know how or where it came from.
10. Most astronauts become two inches taller in space.
11. Inside an astronaut's helmet, there is a velcro patch that serves as a scratcher.
12. astronauts on the International Space Station witness around 15 sunrises and 15 sunsets every day.
buildings
13. The International Space Station is the most expensive object ever built, at US$150 billion.
14. The International Space Station is as roomy as a five-bedroom house and travels at 17,500 mph