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Terms in this set (49)
the range of wavelengths or frequencies over which electromagnetic radiation extends.
Electromagnetic waves with the longest wavelengths and lowest frequencies.
Used for cell phones and quickly cooking food.
Used for heat lamps
ROY G BIV only part of the EM spectrum we see.
cause sunburn, help our bodies produce Vitamin D
used for medical diagnosis-broken bones
have the highest amount of energy, used to treat cancerous cells.
a telescope that uses a set of lenses to gather and focus light from distant objects
a telescope in which a mirror is used to collect and focus light.
process that links separate telescopes so they act as one telescope, producing more detailed images as the distance between them increases.
Large space telescope able to see farther than any other telescope at the end of the 20th century.
Technology that was originally invented and designed for use in space programs but has been adapted for other everyday uses as well
Ability of a surface to reflect light
light-colored, mountainous, heavily cratered area of the Moon, composed mostly of lunar breccias.
dark-colored, relatively flat regions of the Moon formed when ancient lava reached the surface and filled craters on the moon's surface
crater formed when space material impacted on Moon's surface.
material that falls back to the lunar surface after being blasted out by the impact of a space object
long trail of ejecta that radiates outward from a Moon crater.
Valleylike structure that meanders across some regions of the Moon's maria.
layer of loose, ground-up rock on the lunar surface.
The plane of Earth's orbit around the Sun
Either of the two times of the year when the sun is at its greatest distance from the celestial equator
December 21 or 22, the shortest day of the year in the Northern Hemisphere
June 21/22, longest day of the year in the Northern Hemisphere
Each of the two times of the year when days and nights are of equal length
Describes the state at which the Moon's orbital and rotational periods are equal.
Occurs when the Moon passes directly between the Sun and Earth and casts a shadow over part of Earth
an eclipse in which the moon appears darkened as it passes into the earth's shadow.
closest point in the Moon's elliptical orbit to Earth.
describes phases following a new moon, as more of the Moon's lighted side becomes visible
(of the moon) pertaining to the period during which the visible surface of the moon decreases
the phase of the moon in which three-fourths of the moon's side that faces earth is illuminated
the phase of the moon in which only a curved edge of the moon's side that faced earth is illuminated,
lasts about 6 days, can be a small sliver or almost a quarter moon.
one-half of the lighted side of the Moon faces Earth
the point in an orbit most distant from the body being orbited; the highest point
29.5 days, one lunar orbit around the Earth
When the tidal range is greatest. (full moon and new moon)
A less than average tide occurring at the first and third quarters of the moon
Alan B Shepard Jr
First American to fly in space in 1961
first American to orbit the earth
First man in space
a spacecraft that can carry a crew into space, return to Earth, and then be reused for the same purpose
A series of one manned NASA missions designed to send humans into space.
the step in between Mercury and Apollo, to test rendezvous, long duration flight, and space walking, two man missions
The Apollo program was designed to land humans on the Moon and bring them safely back to earth.
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