gravity - the force that attracts a body to any physical body that has mass
Gravity is what keeps you and I from floating away into space
event horizon - a theoretical boundary around a black hole beyond which no light or other radiation can escape
When you get passed the event horizon, your fate is sealed.
worm hole - a hypothetical connection between widely seperated regions of space-time
binary star - a system of two stars that revolve about their common center of mass
collision course - a course of a moving object that will lead to a collision if it continues unchanged
planetary - of, relating to, or belonging to a planet or planets
asteroid - a small rocky body orbiting around the sun
lunar - of, determined by, relating to, or resembling the moon
dwarf star - a star of relatively small size and low luminosity, including the majority of main sequence stars
wavelength - the distance between successive crests of a wave
nebula - a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter
infrared - having a wavelength just greater
comet - a celestial object consisting of a nucleus of ice and dust and, when near the sun, a "tail" of gas and dust particles pointing away from the sun
galaxy - a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
astronomical - extremely large
cosmic - of or relating to the universe or cosmos, esp. as distinct from the earth
Big Bang - the rapid expansion of matter from a state of extremely high density and temperature that according to current cosmological theories marked the origin of the universe
supernova - a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass
infinite - limitless or endless in space, extent, or size; impossible to measure or calculate
worm hole - a hypothetical connection between widely seperated regions of space-time
binary star - a system of two stars that revolve about their common center of mass
collision course - a course of a moving object that will lead to a collision if it continues unchanged
planetary - of, relating to, or belonging to a planet or planets
asteroid - a small rocky body orbiting around the sun
lunar - of, determined by, relating to, or resembling the moon
dwarf star - a star of relatively small size and low luminosity, including the majority of main sequence stars
wavelength - the distance between successive crests of a wave
nebula - a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter
infrared - having a wavelength just greater
comet - a celestial object consisting of a nucleus of ice and dust and, when near the sun, a "tail" of gas and dust particles pointing away from the sun
galaxy - a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
astronomical - extremely large
cosmic - of or relating to the universe or cosmos, esp. as distinct from the earth
Big Bang - the rapid expansion of matter from a state of extremely high density and temperature that according to current cosmological theories marked the origin of the universe
supernova - a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass
infinite - limitless or endless in space, extent, or size; impossible to measure or calculate
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