dearJulius.com Write For Us

When the Sun Dies, a Giant Crystal Will Take Its Place

SHARE:

© Mark Garlick; University of Warwick; European Research Council   After the sun engulfs Mercury, Venus, and Earth, it will shrink into an unimaginably dense crystal ball.

By Jill Kiedaisch, Popular Mechanics

Like all stars, our sun began in a nebula, where gas and dust collapsed on itself in a flurry of cosmic friction. Building pressure and heat created nuclear fusion, which ignited the star into shining. Hydrogen fused into helium, and for billions and billions of years, the center of our solar system has blazed on. 

Eventually, though-in about five billion years-the hydrogen, its fuel source, will run low and heavier elements will begin to fuse. This will build pressure and cause the sun to expand and engulf the orbits of its neighboring planets, Mercury, Venus, and Earth. Now a Red Giant and highly unstable, our sun will emit enormous pulses of plasma and gas. As it blasts most of its matter off into space, it will transform into a huge fluorescent nebula before collapsing into a mere speck of its former self: a cold, dense white dwarf. 

It’s what happens next that fascinates Pier-Emmanuel Tremblay, a physicist at the University of Warwick in England, whose paper, published this week in the journal Nature, examines what happens to these star corpses, or “stellar embers." 

For one, they become unimaginably dense, “200,000 times denser than Earth.” (Scooping a spoonful of white dwarf would be like hefting a helicopter in one hand.) Over billions of years, they transition from a liquid to a solid. The larger the dwarf, the quicker the transition. But unlike the liquid in your ice tray freezing into cubes, the oxygen and carbon that make up a white dwarf start crystallizing at 18 million degrees Fahrenheit. 

The cooling process takes so long because the crystallizing dwarf cores emit heat, which changes their color and luminosity, creating a visual effect the researchers describe as a “pile-up” of stars. It’s not an actual pile-up though. When looking at objects as far away as 330 light-years from the sun, there’s a good chance you’re looking at light that has already been snuffed out. 

Thanks to the European Space Agency’s Gaia spacecraft, which has been charting star positions in the Milky Way since 2013, Tremblay and his team were able to analyze 15,000 white dwarfs at varying stages of their cooling evolution. Their work offers the first evidence that white dwarfs indeed solidify into crystals. The findings also suggest that some of these star corpses are 15 percent older than originally thought. 

Understanding the gravitational energy release of dying stars and how it slows their cooling could help us determine the age of other stars. Thankfully, the star that makes life on Earth possible has about 10 billion years to go before shrinking into a crystallized hunk of matter.

COMMENTS



Note: If you think this story need more information or correction, feel free to comment below your opinion and reaction.
Like & Follow to Stay Updated ...

Name

AI,3,Amazon,1,Apple,5,Emoji,1,Facebook,17,Games,35,Google,7,Instagram,6,Science,205,Security,4,Social Media,24,Tech,242,Technology,1151,Tesla,5,Twitter,4,
ltr
item
Technology - U.S. Daily News: When the Sun Dies, a Giant Crystal Will Take Its Place
When the Sun Dies, a Giant Crystal Will Take Its Place
https://2.bp.blogspot.com/-GzrlcmAbbXE/XDmOEUgk1tI/AAAAAAAAmL4/A9ICQna7rZsay1yGiKWFkjpEMTxMAl4AACLcBGAs/s1600/1.jpg
https://2.bp.blogspot.com/-GzrlcmAbbXE/XDmOEUgk1tI/AAAAAAAAmL4/A9ICQna7rZsay1yGiKWFkjpEMTxMAl4AACLcBGAs/s72-c/1.jpg
Technology - U.S. Daily News
https://tech.dailynews.us.com/2019/01/when-sun-dies-giant-crystal-will-take.html
https://tech.dailynews.us.com/
https://tech.dailynews.us.com/
https://tech.dailynews.us.com/2019/01/when-sun-dies-giant-crystal-will-take.html
true
4191228214535516123
UTF-8
Loaded All Posts Not found any posts VIEW ALL Read More Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share. STEP 2: Click the link you shared to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy