Space Flashcards
(20 cards)
What is the beginning point of a star’s life?
Nebula: a cloud of gasses and dust where planets and stars form
What is the name of a young star (usually brown or blue)?
Protostar
What does a large star turn into when it gets older?
Red Supergiant
What does Red Supergiant turn into after it explodes?
A neutron star and a black hole
What is the explosion of a red supergiant called?
Supernova
What does a red giant produce when it explodes?
Planetary nebula
What is the other product of a red giant explosion?
White Dwarf –> Black Dwarf
What is the life cycle of a mid-sized star?
forms in nebula –> protostar –> mid sized star –> Red Giant –> explosion leaves behind planetary nebula and white dwarf –> black dwarf
What is the life cycle of a large star?
Forms in nebula –> blue protostar –> massive star –> Red Supergiant –> Supernova –> Neutron star and black hole
What is the difference between red shift and blue shift?
Red shift is when the light is moving away from the observer, moving to the red end of the spectrum. Blue shift is when the light is moving towards the observer, moving to the blue end of the spectrum
Which moves away from the observer, red or blue shift?
Red shift moves away
Which moves towards the observer, red or blue shift?
Blue shift
What does CMBR stand for?
Cosmic microwave background radiation
What is CMBR?
CMBR is left over radiation from the beginning of the universe, allowing a snapshot into thousands of years ago
What is the second evidence for evolution?
Redshift of Galaxies. Edwin Hubble observed in the 1920s that all the galaxies/planetary bodies are moving away from each other and us
What is Redshift of Galaxies?
Observed by Edwin Hubble in the 1920s, notes how everything is moving away from each other at an equal rate, letting us know of force that is pushing everything out
What are light elements and how do they provide evidence for the Big Bang Theory?
Helium, Hydrogen, lithium, and they are produced in the explosion of stars, with big bang theory being such a large explosion, it would of produced lots of light elements that we observe today
What are three pieces of evidence for the BIG BANG THEORY
CMBR
Redshift Galaxies
Abundance of light elements
What are the three types of galaxy?
Spiral
Elliptical
Irregular
how long ago was the BIG BANG
13.8 billion years ago
