Big Bang
particle that could not freely move around the Universe at and shortly after its birth
photon
space + time
spacetime
Universe--finite or infinite?
finite
Era when Big Bang occurred
Primordial era
matter-->how was it distributed in the early Universe?
almost evenly
Hubble's discovery regarding an expanding Universe
galaxies are redshifted
fastest thing in the Universe
photons/light/radiation
process protons undergo over vast expanses of time
decay
what we call the first light in the Universe
cosmic microwave background
made-up force that causes Universe's expansion
dark energy
object coming toward you -> redshift or blueshift?
blueshift
Era when stars rule
Stelliferous era
list something created within the first few minutes of the Big Bang ("the Universe" doesn't count)
atoms, matter, four fundamental forces
the thing that is actually expanding in the Universe
spacetime or space
what we think gravity should do to the Universe (but isn't)
pulling things back together
Era that starts once black holes evaporated
Dark Era
the FOUR fundamental forces, AND what happened to them after the start of the Big Bang
electromagnetism, strong force, weak force, gravity; they separated
model of the expanding Universe that best fits our observations (we talked about 4 possible scenarios)
accelerating model
Where the Universe's center is
anywhere or nowhere
small sources of heat during degenerate era
brown dwarfs or small stars
PLACE BETS - NO NOTES
You observe two galaxies: One is 1 billion ly away, and other is 5 billion ly away. How will their spectra differ?