Which object(s) formed last in our solar system?

What are the two main types of star clusters?

What is a model of the solar system where planets orbit the Sun?

Which characteristic is common to all inner planets?

At which location would an object’s weight be the greatest?

What is a type of matter that fills space and is undetectable at
the moment

Which type of star system has the most stars?

What is a model of the solar system where the Sun and planets orbit around Earth

Which phrase describes the composition of the outer planets?

Which force keeps the planets from floating off into space?

Uniform background radiation is detected in every direction supports what theory?

Which type of galaxy has arms that contain sites of active star formation and start close to a bulge in the center?

What are the terrestrial planets?

Which planet revolves slowly around the Sun, has rings, and is known for its Great Red Spot?

Which pair of factors affects the force of gravity between objects?

About how long ago did our solar system start to form?

The dimmer star in a two-star system passes in front of the brighter star. Which phenomenon does this describe?

What are the outer planets?

Which two planets share similar size, mass, and density?

According to Newton’s first law, which characteristic of a moving object would remain constant if there were no other forces acting on it?

Which event led to the formation of our solar system?

What is A LARGE COLLECTION OF STARS, GAS, AND DUST HELD TOGETHER BY GRAVITY

What is found between the orbits of the inner and outer planets?

Which is one characteristic that Mars and Earth share?

Which of the moon’s properties prevents it from being pulled inward by Earth?