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Celestial Bodies
Planetary Science - FOSS
Term | Definition |
---|---|
celestial | relating to the sky or outer space |
stars | give off light and heat energy through nuclear fusion in their cores |
planet | large celestial bodies that orbit stars |
natural satellite | moon |
dwarf planet | smaller celestial bodies that are similar to both planets and asteroids |
asteroid | a rocky object that is not a planet, but orbits the sun |
meteor | an asteroid that enters the Earth's atmosphere |
comet | an icy body from the outer parts of our solar system |
black hole | a region of space where gravity is so strong that nothing, no even light, can escape it's grasp. |
NASA | National Aeronautics and Space Administration - explores and studies celestial bodies |
solar system | the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets. The planets of the solar system are (in order of distance from the sun) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. |
galaxy | collections of stars, planets, and other celestial objects bound together by gravity. |
ISS | a hub for scientific research and international cooperation in space. |
James Webb telescope | a telescope that is deep in space and captures images further away and clearer than ever before. |
AU (Astronomical Unit) | about the distance between the Earth and the sun. |
light year | the distance light travels in one year - 671 million miles per hour |