Do stars vanish, or they don’t? Astronomerts clarify!

Stars vanish, or they don’t? Astronomers for thousands of years have accepted that the lights in the sky were fixed and unchanging. Even when it became clear that these lights are physical objects, one of the main assumptions for astrophysicists has been on timescales of millions or billions of years, they go through major changes slowly.

The biggest stars among all the stars which are many times heavier than the sun as they reach the ends of their lives do go through sudden and cataclysmic changes. Their passing is marked by the unmissable cosmic beacon of a supernova explosion, which shines for many months, and may even be visible across hundreds of millions of light-years.

But what if some stars suddenly shine out of visibility. According to known facts about stars, that should be impossible but over the past few years, a group of astronomers has set out to see whether such impossible things happen by comparing data of decades of observations.

According to Beatriz Villarroel of the Nordic Institute for Theoretical Physics Sweden, “VASCO is the Vanishing and Appearing Sources during a Century of Observations project. We’re actually interested in all kinds of vanishing objects, but ideally I’d like to find a star that’s been steady and has been there in the sky for as long as we can remember and as long as we have data for, and one day it just vanishes. And you can point the biggest telescopes in the world at it and still see nothing there.”

Although current understanding suggests that stars change only very slowly, and dramatic disappearances should leave traces behind. The sky is full of stars that change in brightness and pulsate. Beatriz emphasizes that VASCO is about something different. She said they know there are variables, but their timescales tend to be a few years at most. They want to find out something that goes from a completely steady star to just vanishing entirely, this hasn’t been documented, and it’s the kind of discovery that could lead to new physics.

Lisa Adamhttp://cronullanews.sydney/
Lisa is a young communications professional with disciplined training and apt exposure. She has been a voice for a number of media houses in the country and overseas. Travel, Technology, Consumer, Real Estate and Healthcare have been his main areas of practice using conventional messaging with effective digital strategies.

Latest articles

France plans to make abortion ‘constitutional right’

France is poised to embed the right to abortion as a constitutional guarantee after the Senate voted in favor of the move. The proposed...

know the history behind Burke, Virginia names

Former reporter David Martosko has initiated a campaign to rename Burke, Virginia, seeking to disassociate the town from Silas Burke, an enslaver, and instead...

Historic Texas wildfire continues devastation

A devastating wildfire in Texas, known as the Smokehouse Creek fire, continues to ravage the Panhandle area, becoming the second-largest wildfire in the state's...

Can Australian standards protect online safety?

Tech companies argue that upcoming Australian safety standards may inadvertently increase challenges for generative AI systems in identifying and preventing online child abuse and...

Related articles