The True Origins of Gold in Our Universe May Have Just Changed, Again - ScienceAlert
Sep 15, 2020 1 min, 23 secs
When humanity finally detected the collision between two neutron stars in 2017, we confirmed a long-held theory - in the energetic fires of these incredible explosions, elements heavier than iron are forged.

According to new galactic chemical evolution models, neutron star collisions don't even come close to producing the abundances of heavy elements found in the Milky Way galaxy today.

"Neutron star mergers did not produce enough heavy elements in the early life of the Universe, and they still don't now, 14 billion years later," said astrophysicist Amanda Karakas of Monash University and the ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) in Australia.

In the nuclear fusion furnaces of their cores, these stars forged hydrogen into helium; then helium into carbon; and so on, fusing heavier and heavier elements as they run out of lighter ones until iron is produced.

As stars age, they produce heavier and heavier elements as their insides heat up.".

But, in order to produce the quantities of these heavier elements we observe, we'd need a minimum frequency of neutron star collisions.

And, among their findings, they found the neutron star collision frequency lacking, from the early Universe to now.

"Even the most optimistic estimates of neutron star collision frequency simply can't account for the sheer abundance of these elements in the Universe," said Karakas.

They found that stars less massive than about eight solar masses produce carbon, nitrogen, fluorine, and about half of all the elements heavier than iron.

Stars more massive than eight solar masses produce most of the oxygen and calcium needed for life, as well as most of the rest of the elements between carbon and iron.


1. Coronavirus drug endorsed by Trump causes no heart complications despite previous concerns, study finds - Yahoo Lifestyle
Sep 24, 2020 # health 2 mins, 12 secs
2. Republican Leaders Reject Trump Hedging On Transfer Of Power Amid War Over Confidence - NPR
Sep 24, 2020 # politics 2 mins, 3 secs
3. NeNe Leakes, Newly Free From Bravo, Calls Andy Cohen ‘Racist’ on Twitter - Vulture
Sep 28, 2020 # entertainment 1 min, 27 secs
4. Carole Baskin says she 'would have killed' her first husband in unearthed letter - Daily Mail
Sep 28, 2020 # entertainment 1 min, 11 secs
5. Coronavirus updates: Total cases of COVID-19 for Bexar County tops 54,000 - mySanAntonio.com
Sep 26, 2020 # health 30 secs
6. James Cameron: Filming on Avatar 2 is 100 percent complete - Entertainment Weekly
Sep 28, 2020 # entertainment 31 secs
7. 3 more ancient underground lakes of liquid water discovered on Mars, raising possibility of life - CBS News
Sep 29, 2020 # politics 52 secs
8. Christina Anstead reveals anxiety amid Ant Anstead split, says she 'never thought' she'd get divorced twice - Fox News
Sep 26, 2020 # entertainment 28 secs
9. Democrats hope to avert election night chaos with a clear win in Florida | CBC News
Sep 24, 2020 # breaking 1 min, 52 secs
10. Flesh-eating bacteria causes woman's leg to rot after hiking in Hawaii - New York Post
Sep 30, 2020 # health 48 secs
11. Covid-19 Live Updates: White House Pressured C.D.C. Over Schools - The New York Times
Sep 29, 2020 # politics 6 mins, 2 secs
12. Chadwick Boseman Boosted Sienna Miller's 21 Bridges Salary From His Own Pay - Empire
Sep 28, 2020 # entertainment 41 secs
13. The Ring Always Home Cam Flies Around Inside Your House - WIRED
Sep 25, 2020 # politics 1 min, 44 secs
14. ‘No Man’s Sky’ Doesn’t Even Look Like The Same Game Anymore - Forbes
Sep 29, 2020 # technology 42 secs
15. Hear Bruce Springsteen’s Hard-Rocking New Single ‘Ghosts’ - Rolling Stone
Sep 24, 2020 # entertainment 53 secs
16. New super-enzyme eats plastic bottles six times faster - The Guardian
Sep 28, 2020 # science 54 secs

SUBSCRIBE

Get monthly updates and free resources.

CONNECT WITH US

© Copyright 2020 365NEWSX - All RIGHTS RESERVED