ASTR 1346 - TEST 2 – STARS
ACTUAL QUESTIONS 2026 WITH
VERIFIED ANSWERS.
1. When the Sun is in the latter stages of its red giant phase, its
mass will: - correct answer-Be less than it is currently
2. Inside of a black hole's event horizon, observations have
shown the presence of which of the following entities? -
correct answer-None of the above
3. The planetary nebula phase of a stars life is best described
as: - correct answer-Gentle and low-speed, lifting the
envelope off and dispersing it into space at ~20 km/sec
4. It's the year 3.1 billion AD. How's Earth doing? - correct
answer-The Earth is a super-heated Venus like planet with a
surface and sub-surface temperature ruling out the existence
of all multicellular life and very likely the extinction of all of
Earth's life
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5. You and a friend are the exact same age. One day, for fun,
you live out your dream and fly to a black hole. You approach
very, very close to the event horizon, orbit for a few weeks,
spit into the event horizon (just to say that you did), survive
the experience and fly back to Earth. What will you notice
about the Universe you return to? - correct answer-What you
considered to be a few weeks was actually several decades
for the rest of the Universe and all of your loved ones,
friends, and way of life are long gone. You're okay with this
because you didn't have much going for you anyway and
now cool Pixar-style robots (and not Terminator style murder-
robots) are in widespread use
6. It was said to be fiction that black holes are actually "black"
because they are occasionally very bright objects. How is
this very obvious, high-light output attained? - correct
answer-Swirling disks of gas falling into the black hole glow
from friction and gravitational energy release on the way to
the event horizon
7. A neutron star shares a lot in common with: - correct answer-
An atomic nucleus
8. If the Sun were replaced by a 1 solar mass black hole, which
of the following would occur - structurally - to the Solar