enFIscience20
Galaxy : a collection of star systems
Solar System : the sun with the celestial bodies that revolve around it in its gravitational field
Photosphere : the intensely luminous surface of a star
Electromagnetic Spectrum : the entire frequency range of electromagnetic waves
Bing Bang Theory : a cosmological theory holding that the universe originated approximately 20 billion years ago from the violent explosion of a very small agglomeration of matter of extremely high density and temperature.
Nebula : an immense cloud of gas (mainly hydrogen) and dust in interstellar space
Protostar : Early form of a star; This stage lies between the collapsing of dust and gas and the beginning of nuclear fusion
Main Sequence : fusion begins in core; forces balanced; star stable
Red Giant : a large cool star
Red Supergiant : H runs out, fusion of heavier elements begins (to iron); unstable and dying
Super Nova : massive explosion of unstable high mass star
White Dwarf : a faint star of enormous density
Neutron Star : a star that has collapsed under its own gravity
Black Hole : gravitational field so intense light cannot escape; end of a very massive star
Universe : All of space and everything in it.
wavelength : The distance between crests of waves, such as those of the electromagnetic spectrum.
gamma ray : the high-energy photon emitted by a nucleus during fission and radioactive decay
x ray : electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target
red shift : If the source of light is moving away from the observer then the wavelength of the light is stretched out and would thus appear red.
blue shift : If the object is moving towards the observer, then the wavelength of the light is compressed and would thus appear blue.
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electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target
a collection of star systems
an immense cloud of gas (mainly hydrogen) and dust in interstellar space
the high-energy photon emitted by a nucleus during fission and radioactive decay
a large cool star
If the source of light is moving away from the observer then the wavelength of the light is stretched out and would thus appear red.
All of space and everything in it.
gravitational field so intense light cannot escape; end of a very massive star
If the object is moving towards the observer, then the wavelength of the light is compressed and would thus appear blue.
Early form of a star; This stage lies between the collapsing of dust and gas and the beginning of nuclear fusion
massive explosion of unstable high mass star
The distance between crests of waves, such as those of the electromagnetic spectrum.
a faint star of enormous density
a star that has collapsed under its own gravity
the intensely luminous surface of a star
the sun with the celestial bodies that revolve around it in its gravitational field
fusion begins in core; forces balanced; star stable
H runs out, fusion of heavier elements begins (to iron); unstable and dying
a cosmological theory holding that the universe originated approximately 20 billion years ago from the violent explosion of a very small agglomeration of matter of extremely high density and temperature.
the entire frequency range of electromagnetic waves