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Space terms - SMS
Question | Answer |
---|---|
gravity | a force that causes objects to be drawn to each other |
moon | a natural satellite that revolves around a planet |
quasar | very old, starlike object with a huge amount of energy in the form of light or radio waves |
blackhole | created by a large star collapsing |
planet | an object in definite orbit around the sun, which usually has an atmosphere |
ozone | form of oxygen with a pale blue color and sharp odor |
atmosphere | mass of gasses that surround the earth or other heavenly body |
comet | clestial object compsoed of ice and rocks that orbits the sun (dirty snowball) |
galaxy | one of millions of star systems that contain stars, planets, gasses, etc... |
gamma | electro-magnetic radiation with wavelength of 10 cm or less |
constellation | a recognizable pattern that is easily recognized |
astronaut | a person who travels in space |
meteor | small chunks of stony or metallic matter that enter the earth's atmosphere and usually brun up |
astronomer | person who studies the stars, planets, and how they move in space |
light year | unit of distance used for space travel calculations |
solar winds | stream of ionized gas particles constantly emitted from the sun in all directions |
universe | all that exists - planets, stars, galaxies |
ultra-violet | electo-magnetic waves with wavelengths from c.5 to c.400 nanometers |
sunspots | visible places on the sun up to 1000s of miles wide |
asteroids | planetoids that move around a background of stars (no atmosphere, made of rock) |
satellite | small body that revolves around another |
milky way | our home galaxy |
orbit | the curved path used by a satellite, planet, comet, etc... |
star | large luminous body in space made of hot glowing gases such as the sun (it makes its own light by nuclear fusion) |
nebula | area of gus or dust usually formed by an exploding star or supernova |