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20 Cards in this Set

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  • Back
lunar eclipse
when the Earth comes between the sun and the moon. When the moon (Luna) is in the Earth's shadow it is not visible, so the moon is eclipsed by the Earth.
solar eclipse
when the moon comes between the sun and the Earth, so that a viewer is in the moon's shadow
Santa Maria
is a carter is about 295 feet (90 meters) in diameter.
electromagnetic spectrum
Range of wavelengths in in radiation can be measured.
refracting telescope
Convex,bends out,magnifies an image.
reflecting telescope
Concave mirror used to collect and focus light. Minimize the image
observatory
Dome roof building houses telescopes and other research tools.
radio telescope
Instrument used to detect radio emissions from the sky
satellite
An artificial body placed in space to orbit and gather information/images
space probe
Device sent to space to gather info and images.
Project Mercury
1st human space flight from the U.S. 1959-1963 *Goal is to have a human orbit EARTH
Project Gemini
Second stage in the U.S program to reach the Moon in which an astronaut team connected with another spacecraft in orbit
Project Apollo
final stage in the U.S. program to reach the Moon in which Neil Armstrong was the first human to step onto the Moon's surface.
ellipse
elongated,closed curve that describes Earth's yearlong orbit around the Sun
solstice
twice-yearly point at which the Sun reaches its greatest distance north or south of the equator
equinox
twice-yearly time-each spring and fall-when the Sun is directly over the equator and the number of the daylight and nighttime hours are equal worldwide
moon phase
change in appearance of the Moon
new moon
the time at which the moon appears as a narrow waxing crescent
waxing(moon)
(of the moon) pertaining to the period during which the visible surface of the moon increases; "the waxing moon passes from new to full"
waning (moon)
(of the moon) pertaining to the period during which the visible surface of the moon decreases; "after full moon comes the waning moon"