BIG BANG THEORY
Our Galaxy was once thought to be the entire Universe until Edwin Hubble's discovery of an expanding Universe with potentially trillions of other galaxies
What is the Milky Way Galaxy?
process by which two light atomic nuclei combine to form a single heavier one while releasing massive amounts of energy.
What is Nuclear Fusion?
I am an object that produces it's own energy.
What is a Star?
Most famous for proving the existence of galaxies beyond our Milky Way and for demonstrating that the universe is expanding
Who is (Edwin) Hubble?
The phase planet Earth is in when closest to the Sun.
What is Perihelion?
The Big Bang theory describes the universe as starting from a state known as an infinitely small, hot, and dense point of
What is the (Point) of Singularity?
A star (The Sun) in a stable phase of its life, characterized by fusing hydrogen into helium in its core
What is (a) Main Sequence Star?
This phase of a star is formed when a low-mass star has exhausted all its central nuclear fuel and lost its outer layers as a planetary nebula
What is a White Dwarf?
This physicist's general theory of relativity laid the groundwork for the Big Bang theory to be an expanding universe rather than a steady state
Who is Albert Einstein?
The average distance between Earth and the Sun, which is about 150 million kilometers.
What is an Astronomical Unit (AU)?
The observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance
What is Hubble’s Law (Constant)?
A star's journey begins within a giant cloud of gas and dust.
What is (a) Nebula?
I am an exploding star that shines brightly for days or weeks, and then fades away.
What is a Supernova?
Considered a pioneer in astronomy, he is best known for his three laws of planetary motion
Who is (Johannes) Kepler?
Layer surrounding the core that is an extremely dense zone where energy from the core travels and *radiates* through.
What is the Radiative Zone?
The composition of these gasses in stars and in the universe is a proportion of roughly 75% and 25% with other trace elements making up a small portion once combining takes place through nuclear fusion.
What are Hydrogen & Helium?
Massive stars end their lives in a spectacular supernova explosion, scattering heavy elements into space.
What are High Mass Stars?
I am a huge cloud of gases and dust from which a star forms.
What is a Nebula?
An American astrophysicist, author, and science communicator whom hosts his own fun and energetic Startalk podcast.
Who is Neil deGrasse Tyson?
Arcs from the surface into the corona, eruption of great energy consisting of cool plasma, supported by magnetic fields.
What are Prominences?
The displacement of spectral lines toward longer wavelengths in radiation from distant galaxies and celestial objects
What is Redshift?
Free Space: Bonus 500 pts
Free Space!!
A scatter plot that shows the relationship between a star's surface temperature and its luminosity.
What is the H R Diagram?
Their discovery of cosmic microwave background radiation (CMB) provided crucial evidence supporting the Big Bang theory, for which they shared the 1978 Nobel Prize in Physics.
Who are (Arno) Penzias and (Robert) Wilson?
Layer just above the Sun's surface, this is the source of most ultraviolet light. Flares and arcs of prominences occur here.
What is the Chromosphere?