Usually, if the initial fetal heart rate and contraction pattern show that both mom and baby are doing well, the monitor is removed and used intermittently. If there are no indications for continuous fetal monitoring, it is OK to ask the nurse to remove the monitor to allow you to walk.
A star forms a nebula when it runs out of fuel. The star either  becomes a red giant or a supergiant, then the star would be blown  off into space either by expansion or expâ¦losion. The outer layers,  which was released into space, would become a nebula, or sometimes  a part of a larger nebula.
Simply stated, star formation begins when part of the interstellar mediumâone of the cold, dark clouds discussed in Chapter 18âstarts to collapse under its own weight. (Sec. 18.3) The cloud fragment heats up as it shrinks, and eventually its center becomes hot enough for nuclear burning to begin.