planet with the shortest year
What is Mercury?
stars start forming in this area
What is nebula or Pillars of Creation?
a body in space made of dust and ice that forms a tail when it gets close to the sun
What is a comet?
when one object moves into the shadow of another object
What is an eclipse?
the first four planets from the sun
What are inner planets?
the largest planet
What is Jupiter?
the force that helps create stars, but also destroys them
What is gravity?
a piece of rock from space that hits the earth
What is a meteorite?
during this eclipse, the earth blocks the sunlight from hitting the moon
What is a lunar eclipse?
the galaxy our solar system is part of
What is the Milky Way?
it separates the inner and outer planets
What is the asteroid belt?
this is the middle part of a star's life
What is main sequence?
this object is nearly spherical, orbits the sun, but cannot clear its orbit
What is a dwarf planet?
during this eclipse, the moon appears to cover the sun
What is a solar eclipse?
this caused our solar system to form and holds it together
What is gravity?
3rd planet from the sun
What is Earth?
our sun will become one of these when it dies
What is a white dwarf?
when an object spins on its axis
What is rotation?
What are seasons?
this part of our solar system is about 4.6 billion years old
the sun
the mnemonic device used to remember the order of the planets
What is "My very energetic mother just served us nachos"?
scientists think this inescapable object is in the center of our galaxy
What is a black hole?
when an object moves around another
What is revolving?
these happen in March and September causing equal day and night
all things that exist are part of this
What is the universe?