Spacey
An optical instrument designed to make distant objects appear nearer, containing an arrangement of lenses or mirrors or both.
Telescope
Extremely small units of matter, such as atoms or molecules.
Particles
The state or condition of physical touching; the act of communicating or meeting.
Contact
To gradually wear away or be worn away by natural agents like wind, water, or ice.
Erode
A small, thin, narrow piece of something cut or split off a larger piece.
Sliver
The arrangement of and relations between the parts or elements of something complex.
Structure
Distinct stages in a process of change or development, often cyclic in nature.
Phases
Clearly defined or identified; precise and clear in making statements or issuing instructions.
Specific
A shape resembling a segment of a ring tapering to points at the ends, as seen in the lunar phase.
Crescent
The action of forming or process of being formed; the arrangement of something.
Formation
To turn or cause to turn around an axis or center.
Rotates
Able to be seen; perceptible to the eye.
Visible
A scientist who studies celestial objects, space, and the universe as a whole.
Astronomer
Water or other liquid diffused in a small quantity as vapor, within a solid, or condensed on a surface.
Moisture
The action of repeating something that has already been said or done; recurrence.
Repetition
A number of things or events of the same class coming one after another in spatial or temporal succession.
Series