how many years ago the big bang began
what is about 14 billion
the brightest star in the night sky
what is Sirius
a young star in a dense gas cloud
what is a protostar
a factor that contributes to the temperature of stars
what is mass
neutron star with a strong magnetic field
what is magnetar
about 100 million years after the big bang, gases became hot and dense enough to form these
what are stars
a star's brightness
what is magnitude
when a star's fuel runs out, it becomes this
what are red giants
high temperature and high luminosity are what stars
what is a blue giant
astronomers witnessed a magnetar explosion in which year
what is 2024
large clusters of stars
what are galaxies
refers to the rapid expansion of the universe
what is inflation
scientist who classified stars by absorption lines
who is Annie Jump Cannon
stars that have high temperature and low luminosty
what are white dwarfs
subatomic particles smaller than protons and neutrons
what are elementary particles
the name of our galaxy
what is the mily way
current measurement of the age of the universe
13.82 billion years
when a protostar becomes hot enough it begins this
what is nuclear fusion
stars with a low temperature and high luminosity
what are red super giants
visible light, radio waves, and xrays can detect these
what are pulsars
the study of the cosmos
what is cosmology
first astronomer to use the term big bang
who is fred hoyle
2 possible outcomes after a supernova explosion
what are neutron stars and black holes
these stars have low temperatures and low luminosity
what are main sequence stars
most common life cycle order of most stars
what is nebula, protostar, average star, red giant, supernova, and black hole