Test Bank for The Essential Cosmic Perspective
Farthest Galaxies - ANSWERSModern telescopes see galaxies up to 10 billion light-years.
Solar System Size - ANSWERSOrbits cover area of a typical college campus.
Element Formation - ANSWERSElements formed by nuclear fusion in stars.
Nuclear Fusion - ANSWERSCombining lighter nuclei to form heavier nuclei.
Cosmic Calendar - ANSWERSBig Bang on January 1; Earth formed in September.
Light Travel Time - ANSWERSLight takes 8.4 minutes from Sun to Earth.
Galaxy Recession Velocities - ANSWERSGalaxy B is 6 times farther than Galaxy A.
Youngest Galaxies - ANSWERSFurthest galaxies appear youngest after Big Bang.
New Horizons Spacecraft - ANSWERSImages from Pluto took 4.6 hours to arrive.
Star Material Recycling - ANSWERSNew stars form from ejected gas of previous stars.
Sun Composition - ANSWERSSun mainly consists of hydrogen and helium.
Dark Matter Evidence - ANSWERSUnexpected galaxy rotation velocities indicate dark matter.
, Universe Definition - ANSWERSAll material, space, and energy that exists.
Orientation at Poles - ANSWERSSouth Pole person appears upside down to North Pole.
Universe Expansion - ANSWERSAcceleration suggests presence of dark energy.
Hydrogen Formation - ANSWERSHydrogen formed during the Big Bang.
Milky Way Galaxy - ANSWERSDisk-shaped, 50,000 light-years radius, 100 billion stars.
Observable Universe Galaxies - ANSWERSEstimated to contain billions of galaxies.
Number of stars in our galaxy - ANSWERSRoughly (within a factor of 10) the same as the
number of stars in our galaxy.
Number of stars compared to galaxies - ANSWERSRoughly a thousand times more than the
number of stars in our galaxy.
Naked eye visibility - ANSWERSAbout as many as the number of stars we see in the sky with our
naked eyes.
Grains of sand comparison - ANSWERSAbout as many as the number of grains of sand on all the
beaches on Earth.
Concept of infinity - ANSWERSInfinity.
Human civilization on cosmic calendar - ANSWERSAbout 10 seconds.
Farthest Galaxies - ANSWERSModern telescopes see galaxies up to 10 billion light-years.
Solar System Size - ANSWERSOrbits cover area of a typical college campus.
Element Formation - ANSWERSElements formed by nuclear fusion in stars.
Nuclear Fusion - ANSWERSCombining lighter nuclei to form heavier nuclei.
Cosmic Calendar - ANSWERSBig Bang on January 1; Earth formed in September.
Light Travel Time - ANSWERSLight takes 8.4 minutes from Sun to Earth.
Galaxy Recession Velocities - ANSWERSGalaxy B is 6 times farther than Galaxy A.
Youngest Galaxies - ANSWERSFurthest galaxies appear youngest after Big Bang.
New Horizons Spacecraft - ANSWERSImages from Pluto took 4.6 hours to arrive.
Star Material Recycling - ANSWERSNew stars form from ejected gas of previous stars.
Sun Composition - ANSWERSSun mainly consists of hydrogen and helium.
Dark Matter Evidence - ANSWERSUnexpected galaxy rotation velocities indicate dark matter.
, Universe Definition - ANSWERSAll material, space, and energy that exists.
Orientation at Poles - ANSWERSSouth Pole person appears upside down to North Pole.
Universe Expansion - ANSWERSAcceleration suggests presence of dark energy.
Hydrogen Formation - ANSWERSHydrogen formed during the Big Bang.
Milky Way Galaxy - ANSWERSDisk-shaped, 50,000 light-years radius, 100 billion stars.
Observable Universe Galaxies - ANSWERSEstimated to contain billions of galaxies.
Number of stars in our galaxy - ANSWERSRoughly (within a factor of 10) the same as the
number of stars in our galaxy.
Number of stars compared to galaxies - ANSWERSRoughly a thousand times more than the
number of stars in our galaxy.
Naked eye visibility - ANSWERSAbout as many as the number of stars we see in the sky with our
naked eyes.
Grains of sand comparison - ANSWERSAbout as many as the number of grains of sand on all the
beaches on Earth.
Concept of infinity - ANSWERSInfinity.
Human civilization on cosmic calendar - ANSWERSAbout 10 seconds.
