Okay, that was more than three, but you get the point. A supernova is more significant than a nova, but less so than a hypernova. Supernovae are very bright and generate bursts of radiation that can briefly outshine a whole galaxy before declining in brightness over many weeks or months.n this period a supernova can emit as much energy as the Sun might over its entire lifetime. How Supernovae are Studied. By using optical telescopes, astronomers can approximate the amount of light generated by a supernova.
Cramps or spasms in the muscles often have no clear cause. Possible causes of hand or foot spasms include: 1  Abnormal levels of electrolytes or minerals in the body. 2  Brain disorders, such as Parkinson disease, multiple sclerosis, dystonia, and Huntington disease.  Chronic kidney disease and dialysis.
The median nerve, which runs through the arm and hand, can cause swelling pain and numbness if injured. Damage to the ulnar nerve causes swelling, pain and numbness in the forearm, hand, and ring and little fingers. Hypoparathyroidism is a rare condition that can cause muscle twitches, seizures, cramps, tingling, and more. Dupuytren's contracture is a condition of the hand tissue that causes the fingers to curl. Diabetic neuropathy is a nerve condition of the extremities causing numbness, tingling, and pain. Scleroderma is an uncommon immune disorder that causes collagen to build up in the tissue, making it harden. Tetany is a mineral imbalance causing painful muscle cramps and twitches in the hands, feet, face, and larynx.