To check Oneindia News on your Mobile
go to:   http://m.oneindia.in/news/
  •  

Earth may witness twin suns if Betelgeuse star in Orion nebula explodes

Melbourne, Jan 19 (ANI): The Earth could have a second sun lighting up the sky, if only for a matter of weeks, should the infamous red super-giant star Betelgeuse in Orion's nebula explode.

Dr Brad Carter, Senior Lecturer of Physics at the University of Southern Queensland said Betelgeuse, the second biggest star in the universe, is losing mass, a typical indication that a gravitation collapse is occurring, and when that happens, we'll get our second sun.

"This old star is running out of fuel in its centre," News.com.au quoted Dr Carter as saying.

"This fuel keeps Betelgeuse shining and supported. When this fuel runs out the star will literally collapse in upon itself and it will do so very quickly," he revealed.

When this happens a giant explosion will occur, tens of millions of times brighter than the sun.

"This is the final hurrah for the star," Dr Carter said.

"It goes bang, it explodes, it lights up - we'll have incredible brightness for a brief period of time for a couple of weeks and then over the coming months it begins to fade and then eventually it will be very hard to see at all," he explained.

Some experts have speculated Betelgeuse's explosion may cause a neutron star or result in the formation of a black hole approximately 1300 light years from Earth, but Dr Carter says it could go either way.

"There's a reasonably even chance of a neutron star or a black hole. If it were me, I'd suspect it would more likely become a black hole at 20 solar masses," he added. (ANI)

'Ozone set to harm world vegetation, economy'

Boston, Oct 30: The spread of ozone, a greenhouse gas, could inflict serious damage on vegetation in many places, cutting up to 12 percent off the value of global crops by 2100 and hurting the world economy, a study said. While hotter temperatures and increases in carbon dioxide from fossil fuels could help vegetation in northern temperate regions, those changes would be undermined by damage to world crops from higher ozone levels, the researchers said yesterday. Levels of ozone, a form.....
User Comments
[ Post Comments ]
Be the first to comment on this article.
Oneindia  Oneindia Login