1.
Many Worlds: Our solar system has eight planets and five dwarf planets.
2.
Small Worlds Too: About 1.4 million asteroids and over 4,000 comets reside in our solar
system.
3.
Lots of Moons: Our solar system has hundreds of moons of varying shapes and sizes.
4.
Meet Me in the Milky Way: We are in one of the Milky Way galaxy’s spiral arms called the
Orion Spur.
5.
Spiraling Through Space: The Milky Way is a barred spiral galaxy orbiting at 515,000 mph.
6. A
Long Way Around: It takes our solar system 230 million years to orbit the galactic center!
7.
Diverse Atmospheres: Our solar system has many worlds with highly diverse and thick
atmospheres.
8.
Ring Worlds: All four gas giant planets – and at least one asteroid – have observable
rings.
9.
Getting Out There: Over 300 robotic spacecraft have left Earth's orbit. 24 US Astronauts
have traveled to the moon.
10.
Life as We Know It: So far, Earth is the only known place where we've found life in our
solar system.