Remember that Supernovas are great contributors to interstellar material that forms new stars. The star which explodes to supernova will leave either a pulsar or a black hole depending on its mass. Part of the supernova will scatter into space.
It is said that a hypernova can release around 100 times more energy than a supernova. Supernova's will reach temperatures of 100 billion degrees centigrade, and will release more energy in 15 seconds than our sun does in it's entire lifetime!
It may occure but probabilities are no.
SN 2006gy was the brightest and largest supernova ever discovered, scientists announced. The star was in the NGC 1260 galaxy, in the same direction as the constellation Perseus and may be a type of supernova previously predicted by theory but not observed. The conclusion was reached after extended observations of the supernova by both optical telescopes and X-ray telescopy. Currently, there are two possible explanations for the supernova's brightness, but both require the star in question to have been at least a hundred times as massive as the sun. Although the supernova is brighter than SN 1987A, which was bright enough to be seen by the naked eye, SN 2006gy is too far away to be seen by the naked eye.
after shocks don't occur in the same place due to ex tonic faults occuring in the ground
Most stars are dimmer than our sun (intrinsic brightness), and thus we cannot see them. However, most of the stars that we can see are actually quite a bit brighter than our sun. Some of them are exceedingly bright.
"Supernovae" is a plural form of "supernova"
All it means that there were more than one observations which had the same value.
no
It's not the same as a supernova--the Crab Nebula is the visible remnant of a supernova event which occurred about 7,500 years ago. The light from the supernova explosion reached the earth and was observed by Chinese and Arab astronomers about 1,000 years ago. The Crab Nebula was the first object to be identified with a supernova which was actually observed during recorded history.
Yes. Debridement of pressure sores (decubitus ulcers) can occur many times, if need be.
Yes, multiple aneurysms can occur.
No there isn't. Microbursts are not all that uncommon, and they usually occur in the same season, increasing the liklihood they would occur near the same time of the year. And if the climate in one area permits microbursts, then it isn't surprising that they will occur more than once.
Lightning does occur in different places, but many more times then 2!
An object further away will appear less bright than the same object closer to us. However, a supernova can emit the same brightness as our Sun does in it's whole lifetime, in a very short period of time - a nova on the other hand, at maximum brightness is only about 100,000 times that of the Sun.
once more
The Pandora app can play a song more than once in the same day.
Bad things. If all the starts went supernova at the exact same time, we'd still only be affected by our own sun's supernova. The others starts are so far away that we wouldn't notice for years. Assuming that the sun somehow skipped the other stages of death and suddenly went supernova regardless of its mass, we'd be doomed about 8 minutes after it happens. On the scale of the universe though, there'd be complete chaos. Planets flying everywhere, no more energy for known life to exist, etc. Keep in mind that only the largest of starts can potentially go supernova, though. If only the starts big and bright enough to supernova went supernova, things would be bad but very different.