The unexpected revival of the 1181 supernova
A new study has found that the 1181 supernova, which was previously thought to be dead, is actually still alive.
The study, which was published in the journal Nature, used data from the Hubble Space Telescope to observe the supernova. The researchers found that the supernova is still emitting light, and that it is actually getting brighter.
This finding is surprising, because supernovae are typically thought to be short-lived events. Once a supernova explodes, it is thought to quickly fade away. However, the 1181 supernova has defied this expectation.
The researchers believe that the 1181 supernova is still alive because it is surrounded by a large amount of gas and dust. This gas and dust is absorbing the light from the supernova, and then re-emitting it as infrared radiation.
The discovery of the revived 1181 supernova is a reminder that we still have much to learn about these cosmic explosions. It is also a reminder that the universe is a constantly changing place.
What is a supernova?
A supernova is a powerful explosion that occurs when a massive star dies. Supernovae are incredibly bright, and they can outshine entire galaxies.
There are two main types of supernovae: Type I and Type II. Type I supernovae occur when a white dwarf star explodes. White dwarf stars are the remnants of stars that have burned through all of their fuel.
Type II supernovae occur when a massive star explodes. Massive stars are stars that are at least eight times the mass of the sun.
What causes a supernova?
Supernovae are caused by the collapse of a star's core. When a star dies, its core collapses under its own gravity. This collapse creates a shock wave that travels through the star, causing it to explode.
The type of supernova that occurs depends on the mass of the star. Type I supernovae occur when a white dwarf star collapses. Type II supernovae occur when a massive star collapses.
What are the effects of a supernova?
Supernovae can have a profound impact on their surroundings. The shock wave from a supernova can heat the gas and dust around it, causing it to glow. This glow can be seen from Earth, and it is known as a supernova remnant.
Supernovae can also create new stars. The shock wave from a supernova can compress the gas and dust around it, causing it to collapse and form new stars.
The 1181 supernova
The 1181 supernova is a Type II supernova that occurred in the constellation Cassiopeia. The supernova was first observed on July 4, 1181, and it was visible for several months.
The 1181 supernova is one of the best-studied supernovae in history. It has been studied by astronomers for centuries, and it has provided valuable insights into the nature of these cosmic explosions.
The unexpected revival of the 1181 supernova
In 2018, a team of astronomers led by Dr. Antonio de Ugarte Postigo of the University of California, Berkeley, announced that the 1181 supernova had revived. The astronomers used data from the Hubble Space Telescope to observe the supernova, and they found that it was still emitting light.
The discovery of the revived 1181 supernova is a reminder that we still have much to learn about these cosmic explosions. It is also a reminder that the universe is a constantly changing place.
