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Why is the atmospheric pressure at the surface of Venus so much higher than Earth's?
A lens must be ________ in shape to focus the transmitted light.
Why was the 1978 Nobel Prize in Physics given to Penzias and Wilson from Bell labs?
To a large degree, the ________ has replaced photographic film for astronomical
imaging.
The surface of Mercury looks very similar to ________.
What role does helium play in spectral classification?
Does a planetary nebula have anything to do with planets? Explain.
How are the large amounts of heating at Io generated?
The absolute magnitude of a star is how bright it appears if viewed from a distance of
________ light-years.
Why is M-42, the Orion Nebula, so important to us?
What are the short- and long-term effects of the Moon's tides on our rotation?
A region of ionized gas and dust, with imbedded hot young stars, is an ________.
Name three differences between terrestrial and jovian planets.
Explain the effect angular momentum has on a gas cloud as it contracts.
When Earth overtakes Mars, the outer planet retrogrades near ________.
Why is a CCD image much faster to obtain than a photograph?
The oxygen in our atmosphere is produced by ________.
What role do molecules play in spectral classification?
The volcanic activity of Enceladus has what effect outside the moon itself?
How did Tycho's detailed observations of Mars' brightness help show that its orbit could
not be circular?
