How might the most common occurring stars be described, based on our stellar neighborhood?
A) white dwarfs
B) K giants
C) G main sequence
D) A main sequence
E) M main sequence
E
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The Gateway Arch in St. Louis, Missouri, is a
A) parabola. B) hyberbola. C) catenary.
How do regions showing strong radio emission from molecules look in the visible-light image? Are they bright or are they dark?
What will be an ideal response?
A graduate student in astronomy who grew up in Illinois gets to accompany her research professor to the South Pole Telescope. What will be different at the South Pole from the way she remembers the sky in Illinois?
What will be an ideal response?
The two families of fundamental particles out of which all ordinary matter is made are
A) protons and neutrons. B) leptons and quarks. C) electrons and neutrinos. D) quarks and neutrinos. E) leptons and photons.