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There are ground-based telescopes much larger than Hubble, yet the HST still reveals
the faintest objects yet seen. Explain.
Of the six layers of Earth, which is unique among the planets? Why?
A neutron star detectable by its rapid rotation and strong magnetic field is a ________.
Explain an advantage a good refractor corrected for chromatic aberration has over any
design of reflector of the same size.
The ________ equation was written to assess the probabilities of technological,
intelligent life existing in the Galaxy.
Why argument did the Aristotelian school present to reject the concept of Aristarchus
that the Earth could be revolving around the Sun? Why was it wrong?
The main difference between an A2V and F2V star is their ________.
Once crossed, not even light can return over the ________ of a black hole.
If Mars' atmosphere is mostly carbon dioxide, why isn't it as hot as Venus?
What is the "water hole"? Why is so promising to radio astronomers?
What is the critical temperature for stage 7; why?
The critical number for the rate of universal expansion and age of the Big Bang is
________.
All four ring systems lie around their planet's ________.
The result of a galactic merger depends on the ________ of each galaxy.
According to Newton's laws, the planets orbit the Sun due to ________.
The ALH84001,meteorite, discovered in Antarctica, came from ________, and suggests
it may once have had life.
The only particle we can directly observe coming out of the Sun's core is the ________.
In Europe, what weather phenomenon coincided with the Maunder Minimum?
What are the Magellanic Clouds? What happened in the LMC in 1987?
For Galileo, the observation of the phases of ________ proved that Ptolemy's
geocentric model with epicycles was wrong.
