NASA has released an image taken by the Hubble space telescope of a cluster of stars known as NGC-121, in one of our neighboring galaxies. ESA/Hubble/NASA. Saturn's largest and second largest moons, Titan and Rhea, appear to be stacked on top of each other in this true-color scene from NASA's Cassini spacecraft.
An enlarged left ventricle of the heart can be the result of heart muscle disease caused by medication, drugs, alcohol, idiopathic (cause unknown).
Factors that can cause your heart to work harder include: 1  High blood pressure (hypertension). This is the most common cause of left ventricular hypertrophy. More than one-third of people show evidence of left ventricular hypertrophy at the time of their diagnosis with hypertension.  Aortic valve stenosis.