Process that links separate telescopes so they act as one telescope, producing more detailed images as the distance between them increases.
a type of telescope that uses mirrors to focus visible light.
a type of telescope that uses lenses to focus visible light.
NASA technology that has been passed to commercial industries for common use.
amount of sunlight that is reflected by the surface of a planet or a satellite, such as the Moon.
Material that falls back to the lunar surface after being blasted out by the impact of a space object.
Light-colored, mountainous, heavily cratered areas of the Moon, composed mostly of lunar breccias.
Moon crater formed when space material impacted on the lunar surface.
dark-colored, basaltic, smooth plain on the Moon, between 3.1 and 3.8 billion years old, that formed from lava welling up and filling in large impact basins.
long trail of ejecta that radiates outward from a Moon crater.
Layer of loose, ground-up rock on the lunar surface.
Valley like structure that meanders across some regions of the Moon's maria.
Farthest point in the Moon's elliptical orbit to Earth.
Occurs when the Sun is directly overhead at the equator and results in day and night of equal length for both northern and southern hemisphere
Plane that contains Earth's orbit around the Sun
Occurs only during a full moon, when Earth passes between the Sun and the Moon, and Earth's shadow falls on the Moon.
closest point in the Moon's elliptical orbit to Earth.
occurs when the Moon passes between Earth and the Sun and the Moon casts a shadow on Earth, blocking Earth's view of the Sun; can be partial or total.
occurs when the Sun is directly overhead at 23.5 degrees north latitude, around June 21, and results in the maximum number of daylight hours for the northern hemisphere and the minimum number for the southern hemisphere.
describes the state at which the Moon's orbital and rotational periods are equal.
occurs when the Sun is directly overhead at the equator and results in day and night of equal length for both northern and southern hemispheres.
occurs when the Sun is directly overhead at 23.5 degrees south latitude, around December 21, and results in the minimum number of daylight hours for the northern hemisphere and the maximum number of the southern hemisphere.