Density waves may explain

The compass direction points (N, NW, W, SW, S, SE, E, NE) are marked along the horizon in Starry Night. Change the direction you are facing until the gaze display shows an Azimuth (Az) of 315 degrees. What compass direction are you facing?

What was the best time for viewing Jupiter from Toronto, Canada on the night of July 4/5, 2009?

The Galactic Year is the time for our solar system to orbit the Galaxy; it is about

The core of the Milky Way, Sagittarius A, is a strong radio source in the sky.

The Milky Way is simply our edge-on view of our home Galaxy.

____ is the primary technique you will use to move a patient onto a long backboard. 

A 60-year old man is found sitting in his car alongside a road. There is no apparent damage to his vehicle. Your assessment reveals that the man is in cardiac arrest. You should:

Make every effort to pull the patient in the direction of the long axis of the body to protect the spine as much as possible. 

If you suspect that the patient has suffered a head or spine injury, you should: