It may be the remnant of an ancient supernova i.e., violently exploding star.
The amateur stargazer, who spends his days working with computers, has discovered yet another supernova, or exploding star.
IN 1680, the light from a supernova (a massive, exploding star) in the constellation of Cassiopeia reached Earth.
So one earlier experiment, which is also a big water tank, managed to see these neutrinos from exploding star actually 160,000 light years away.
The collapse could have been initiated by a shock wave emanating from a nearby supernova, a violently exploding star, or by random density fluctuations in the cloud itself.
Hubble was able to spot the most distant Type Ia supernova – a type of exploding star believed to always have the same intrinsic luminosity.
For the last 20 years, astronomers seeking to measure the cosmos have used a special type of exploding star, known as Type 1a supernovas, as distance markers.
They also use a certain type of exploding star, or supernova, that explodes in the same way every time.
Now, they say that a type of exploding star first thought to be an unusual sort of type Ia supernova is actually a different class of supernova altogether.
