There are at least 10 billion trillion stars in the universe.
- Neutron stars are very very heavy (100 million tons)
- 1 million Earths could fit inside the sun
- The biggest mountain in our solar system is on mars and it is called Olympus Mons
- The universe spans a diameter of over 150 billion light years
- The Universe is 13.7 billion years old
- The largest planet in the solar system is Jupiter, followed by Saturn, Uranus, Neptune, Earth, Venus, Mars with the smallest being Mercury.
- A space suit cost US$12 million
- The international space station is the most expensive object ever built, at US$150 billion.
- There are most likely more than 500 million planets able to support life in our galaxy
Neptune has an average surface temperature of -214°C – approximately -353°F.
- A year on Mercury is just 88 days long
- Mars is the fourth planet from the Sun and last of the terrestrial planets and is around 227,940,000 km from the Sun.
- Earth It is the only planet that has liquid water on its surface.
- One day on Venus is longer than one year
- Jupiter is two and a half times more massive than all the other planets in the solar system combined.
- Saturn is the second largest planet and is best known for its fabulous ring.
- Uranus turns on its axis once every 17 hours, 14 minutes.