Sun forecast to end as a planetary nebula

Sun forecast to end as a planetary nebula

Sun forecast to end as a planetary nebula

Prof. Albert Zijlstra at the University of Manchester, who was one among the global group of researchers, said that when the stars die they expel a huge mass of dust and gas into the space, which is called its envelope. An estimated 90 percent of dying stars emit a ghostly dust halo, which persists for thousands of years; but computer models established decades ago suggested that a star would need to be about twice the mass of our sun to generate a cloud bright enough to be seen, the study authors reported.

However, after developing a new model that predicts the lifecycle of stars, a team of worldwide astronomers has discovered low mass stars of the size of our sun or larger do in fact produce a visible nebula, albeit slightly fainter ones.

Once its supply of hydrogen is exhausted, the final, dramatic stages of its life will unfold, as our host star expands to become a red giant, then tears its body to pieces to condense into a white dwarf.

"The envelope can be as much as half the star's mass", Zijslra explains. "This reveals the star's core, which by this point in the star's life is running out of fuel, eventually turning off and before finally dying", commented astrophysicist Albert Zijlstra from the University of Manchester in the United Kingdom, one of the authors of the new study.

While our sun is just capable enough to form a planetary nebula, the envelope it forms will only shine for about 10,000 years, which isn't a long duration of time in astronomy. That, until now when recent observations indicate that our Sun will turn into a planetary nebula, a huge ring of bright interstellar gas and dust.

A few planetary nebulae are so bright, Zijlstra said, that they can be observed from very big distances of a maximum of tens of millions of light years, "from places where the star itself would have been too weak to locate".

To find out the team developed a new stellar, data-model that predicts the lifecycle of stars.

Comedian Ken Jeong Stops Stand-Up Show To Help Audience Member Having Seizure
TMZ was the first to report the incident Sunday, saying Jeong cleared the area and attended to the fan until paramedics arrived. Jeong earned his undergraduate degree at Duke University before receiving a medical degree at the University of North Carolina.

'Avengers: Infinity War' Posted a Historic Second-Weekend Box Office Total
The Avengers ($1.52 billion) now holds the record for the biggest global total for a superhero film. The prior record holder was Star Wars: The Force Awakens , which reached the milestone in 12 days.

Gov't airs concern over China missile deployment
Before the new deployments were revealed, Admiral Philip Davidson, newly confirmed to be head of the U.S. Chinese officials did not immediately respond to requests for comment.

An global group of astronomers has claimed to have figured out as to when the sun would die and what would eventually happen to it.

The new research suggests that the sun will transform into a planetary nebula - a massive glowing globe of gas and dust.

However, even though the data the team got was correct, scientific models didn't support this method.

A new stellar death model reveals how our sun is going to die and solves a 25-year-old science problem in the process.

Christophe Morisset, an astronomer at the National Autonomous University of Mexico, tells the publication that the new model operates on the theory that when lower-mass stars expel their envelopes, the cores heat up more rapidly than scientists previously thought.

Even a star with a mass less than 1.1 times that of the Sun won't produce visible nebulae. "Problem solved, after 25 years!"

According to Zijlstra, this new study yielded a "nice result".

Related news