Flashcards - The Universe, Solar System & the Earth-Sun Relationship

Flashcards - The Universe, Solar System & the Earth-Sun Relationship
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galaxy
A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter
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black hole
A black hole is a region of spacetime exhibiting such strong gravitational effects that nothing-not even particles and electromagnetic radiation such as light-can escape from inside it
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diffraction grating
In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions
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water cycle
The water cycle, also known as the hydrological cycle or the H2O cycle, describes the continuous movement of water on, above and below the surface of the Earth
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comet
A comet is an icy small Solar System body that, when passing close to the Sun, heats up and begins to outgas, displaying a visible atmosphere or coma, and sometimes also a tail
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Doppler effect
The Doppler effect is the change in frequency or wavelength of a wave for an observer moving relative to its source
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Doppler effect
The Doppler effect is the change in frequency or wavelength of a wave for an observer moving relative to its source
comet
A comet is an icy small Solar System body that, when passing close to the Sun, heats up and begins to outgas, displaying a visible atmosphere or coma, and sometimes also a tail
water cycle
The water cycle, also known as the hydrological cycle or the H2O cycle, describes the continuous movement of water on, above and below the surface of the Earth
diffraction grating
In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions
black hole
A black hole is a region of spacetime exhibiting such strong gravitational effects that nothing-not even particles and electromagnetic radiation such as light-can escape from inside it
galaxy
A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter
asteroid
Asteroids are minor planets, especially those of the inner Solar System
meteoroid
A meteoroid is a small rocky or metallic body in outer space
terrestrial planets
A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals
winter solstice
Winter solstice is an astronomical phenomenon marking the shortest day and the longest night of the year
solar eclipse
As seen from the Earth, a solar eclipse is a type of eclipse that occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun
solar wind
The solar wind is a stream of charged particles released from the upper atmosphere of the Sun
Sun
The Sun is the star at the center of the Solar System

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