When we look at light reflected from places like the polar ice caps of Mars, we look for absorption “features” like the three shown here in the red enclosures for two different sizes of CO2 ice granules:   What is the physical meaning of the large dips in the data at 2.7 microns (μm), 2.8 microns and 3.3 microns, all infrared wavelengths?

Quiet breathing is to ________ as shallow breathing is to ________.

The exotic nuclear reactions by which other elements are manufactured by supernovae occur ________.   Cassiopeia A supernova remnant

The Soviet Union orbited and landed on Venus with several spacecraft in the 1960s to the 1980s.  One outstanding and difficult condition they encountered on Venus was

PHASES of VENUS   Galileo was the first to observe the crescent phase of Venus.  It showed that ________.

Which of the following is NOT a repetitive motion injury?

The Hertzsprung-Russell color/luminosity diagram is usually organized by spectral types O, B, A, F, G, K, M.   What is our Sun’s spectral type?

One way to think about a supernova is that it is a factory for…    

Air passing through the glottis vibrates the vocal folds and produces

The adult human trachea is about ________ in diameter and contains ________ tracheal cartilages.