Also known as ion tail, or ‘gas’ tail. It always points directly away from the Sun, and consisting of ions such as water ions, is often turbulent with twists and knots.

They are objects in space that range in size from dust grains to small asteroids.

When a space rock survives a trip through the atmosphere and hits the ground, they are called _________

Are another term for asteroids, which are also called minor planets. They are small celestial bodies that orbit the Sun.

They are rocky and metallic objects that orbit the Sun but are too small to be considered planets.

Any meteorite consisting largely of rock-forming (silicate) minerals.

It is a region between about 30 and 50 AU from the Sun in the plane of the ecliptic.

It is a celestial event in which a number of meteors are observed to radiate, or originate, from one point in the night sky.

It is a formulaic prediction of spacing between planets in any given solar system.