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20 Cards in this Set
- Front
- Back
lunar eclipse
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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.
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solar eclipse
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when the moon comes between the sun and the Earth, so that a viewer is in the moon's shadow
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Santa Maria
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is a carter is about 295 feet (90 meters) in diameter.
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electromagnetic spectrum
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Range of wavelengths in in radiation can be measured.
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refracting telescope
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Convex,bends out,magnifies an image.
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reflecting telescope
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Concave mirror used to collect and focus light. Minimize the image
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observatory
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Dome roof building houses telescopes and other research tools.
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radio telescope
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Instrument used to detect radio emissions from the sky
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satellite
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An artificial body placed in space to orbit and gather information/images
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space probe
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Device sent to space to gather info and images.
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Project Mercury
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1st human space flight from the U.S. 1959-1963 *Goal is to have a human orbit EARTH
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Project Gemini
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Second stage in the U.S program to reach the Moon in which an astronaut team connected with another spacecraft in orbit
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Project Apollo
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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.
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ellipse
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elongated,closed curve that describes Earth's yearlong orbit around the Sun
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solstice
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twice-yearly point at which the Sun reaches its greatest distance north or south of the equator
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equinox
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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
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moon phase
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change in appearance of the Moon
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new moon
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the time at which the moon appears as a narrow waxing crescent
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waxing(moon)
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(of the moon) pertaining to the period during which the visible surface of the moon increases; "the waxing moon passes from new to full"
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waning (moon)
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(of the moon) pertaining to the period during which the visible surface of the moon decreases; "after full moon comes the waning moon"
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