Here are ten facts about supernovae that you may have not known. Somewhere in the cosmos, a star is reaching the end of its life. Maybe itâs a massive star, collapsing under its own gravity.upernovae occur in our galaxy at a rate of about one or two per century. Yet we havenât seen a supernova in the Milky Way in around 400 years. The most recent nearby supernova was observed in 1987, and it wasnât even in our galaxy. It was in a nearby satellite galaxy called the Large Magellanic Cloud.
Unfamiliar exercise activities can also cause muscle spasms to occur. Abdominal spasms can occur when a person decides to begin working their abdominal muscles by doing sit-ups and does too many too quickly. Writer's cramps of the hand and fingers are similarly caused by prolonged use of the small muscles in the hand. It is commonly thought that dehydration and depletion of electrolytes will lead to muscle spasm and cramping.
Muscle spasms and cramps. Cramps are caused by muscle spasms, involuntary contractions of one or more muscles. In addition to the foot and calf muscles, other muscles prone to spasms include the front and back of the thigh, the hands, arms, abdomen and muscles along the ribcage.uscle cramps can have many possible causes. They include: 1  Poor blood circulation in the legs. 2  Overexertion of the calf muscles while exercising. 3  Insufficient stretching before exercise.