2.1
estimated that this event created our universe about 14 billion years ago
What is the big bang
the astronomer who first used the term "big bang"
who is Fred Hoyle
a young developing star inside a dense gas cloud
what is a protostar
what large stars become before they die
what is a super red giant
tiny subatomic particles smaller than protons/neutrons are known as this
what are elementary particles
about 100 million years after the big bang, these were formed
what are stars
the universe is currently measured to be this many years old
what is 13.82 billion
when a star's fuel begins to run out, it becomes this
What is a red giant
when massive stars explode, they become this
what is a supernova
small nuclei fusing together is known as this
what is nuclear fusion
large groupings of stars
what are galaxies
a star's brightness
what is magnitude
the scientists who classified stars based on absorption lines
who is Annie Jump Cannon
a neutron star from a collapsed core with a strong magnetic field
what is a pulsar
examples of these include lightning and light bulbs
what is plasma
the galaxy that Earth is located in
what is the milky way
the brightest star in our night sky
What is sirius
the factor that controls a stars temperature
what is mass
a neutron star with an even stronger magnetic field
what is a magnetar
fusion reactions in the sun produce particles that create this
what is solar wind
the study of the universe
what is cosmology
The color the hottest star appears
What is blue
what is nuclear fusion
astronomers witnessed a magnetar explosion in this year
what is 2004
a thermal runaway triple alpha reaction is known as this
what is a helium flash