Massive Neutron Star Collisions Explain the Universe's Gold, Platinum, and Uranium

The LIGO gravitational-wave detectors in Hanford Washington, and Livingston Louisiana

"The same source, the neutron star merger, was detected by LIGO-Virgo, a short gamma ray burst was simultaneously detected by instruments on board the Fermi satellite, and an optical/near-infrared source detected via large field-of-view imagers".

Not only is the first time we've spotted a neutron star merger, but it's also the first time gravitational waves have been detected from anything other than black hole mergers, which are invisible to telescopes. These were created by the union of two massive black holes. The LIGO Scientific Collaboration and another group, Virgo Collaboration, identified the collision on August 17. Astronomers worked together to locate the area where the merger occurred. They narrowed it down to a rather small patch of the southern sky.

According to Dale Frail of the National Radio Astronomy Observatory, the kilonova spotted in August is the "first unambiguous detection of a merger of two neutron stars".

Gamma ray burst are explosions in distant galaxies that release extremely high amounts of energy.

Scientists have detected gravitational waves for the first time ever.

"This is a revolution in astronomy, of having thousands of astronomers focus on one source for weeks and having this collaboration unravel in seconds, in hours, then days, and weeks".

So where will all these new discoveries lead us? Since then, detecting gravitational waves from colliding black holes has started to feel like familiar territory, with four further such events detected. For the past century, astronomers have been trying to figure out how to detect the ripples, which were predicted by Albert Einstein in his theory of general relativity. But Smartt added that, by the time dusk fell in Paranal, the LIGO-Virgo collaboration had refined their localization of the GW signal, to the extent that searching for an electromagnetic counterpart became feasible.

Archana Pai (Department of Physics, IIT-B): Her expertise on gravitational wave multi-detector algorithms and probing astrophysical parameters steered the joint detection scenario. LIGO is comprised of two observatories, one in Hanford, Washington, and the other in Livingston, Louisiana. As the wing of night swept over the globe, the signal was picked up in Hawaii and over the following weeks, about 70 observatories watched the event unfold when they were on the dark side of the earth.

Senator Blumenthal Calls On FCC To Counter Trump's Threats To NBC
NBC, like many news outlets, has aggressively reported on story lines that are critical of the president. Of course, it's an open question whether Trump's tweets are actually directives.

"Gravitational astronomy is just the beginning", he said.

His mathematics showed that massive accelerating objects - such as neutron stars or black holes - that orbit each other distort both space and time and emit a type of radiation known as gravitational waves. The optical data helps astronomers to interpret the LIGO data and vice versa, Valenti said. After scientists ruled out the hypothesis regarding the gamma ray bursts and Russian nuclear bombs, the observation of the neutron stars was followed by a short gamma ray burst which quickly came after the moment of the collision.

The collision took place so far away that the light and gravitational waves have only reached Earth recently. "Virgo in a way missed it, because it happened to be in a narrow part of the sky where Virgo couldn't quite catch it", said Kalogera.

The discovery of gravitational waves was so important that three U.S scientists behind it were awarded the Nobel Prize in physics this month.

Swope observatory (ground-based) in Chile first saw it and snapped its images in visible lights. This includes crucial visible-light observations by the Southern African Large Telescope (SALT) one day after the merger event; and monitoring by an worldwide network of radio observatories that included SARAO's HartRAO. "There's nothing like the feeling knowing you're one of the first people in the world to see a new phenomenon". While we've suspected neutron stars to be key to producing these elements in space, that hypothesis now looks a whole lot more convincing.

The impact of the merger is called kilonova, an enormously explosive event.

That's "the first concrete proof that such smashups are the birthplace of half of the universe's elements heavier than iron, including gold and platinum", the LIGO team said in a statement.

"Theorists have been working on kilonova for the past decade, and now with this one singular event, all this decade of work is all kind of coming to a head", Tony Piro, principal investigator of the Swope Supernova Survey, told The Verge.


  • Hawaii judge blocks Trump's latest travel ban

    Hawaii judge blocks Trump's latest travel ban

    Trump issued his proclamation only after an "extensive worldwide security review" by federal authorities, she said. The US federal government is likely to appeal Judge Watson's decision.
    Kenya: Roselyn Akombe Resigns From Poll Agency

    Kenya: Roselyn Akombe Resigns From Poll Agency

    Akombe told the BBC from NY that she had received anonymous threats and feared for her life. At least four people have been killed during protests following the court ruling.
    Did Watford's Richarlison dive to win a penalty against Arsenal?

    Did Watford's Richarlison dive to win a penalty against Arsenal?

    After the game, Arsene Wenger picked on Watford's penalty as a key moment in the game. They've now lost Premier League games to Stoke, Liverpool and Watford this season.
  • State of Emergency Declared for Richard Spencer Speech

    State of Emergency Declared for Richard Spencer Speech

    Rick Scott got backing from Cabinet members for the state of emergency he declared in Alachua County . Bristow is seeking to schedule Spencer's speech at Ohio State for sometime this winter.
    Ed Boon teases game for Nintendo Switch

    Ed Boon teases game for Nintendo Switch

    Injustice 2 has already enjoyed sales success on PS4 and Xbox One, as it became the highest-grossing console game of Q2 .
    Tesla fired 400 employees last week

    Tesla fired 400 employees last week

    The housecleaning swept out employees in administrative and sales positions, outside of manufacturing department. Elon Musk prefers to work long hours as he serves as CEO of Tesla and SpaceX simultaneously.
  • Literally Everyone Wore White To Gucci Mane's Wedding

    Literally Everyone Wore White To Gucci Mane's Wedding

    Ka'oir told People magazine that she wanted "a royal wedding" with "all white with diamonds and crystals ". This is because literally everyone wore white, and not just the bride, Keyshia Ka'oir Davis.
    Sri Lanka eases ban on all-rounder Gunathilaka

    Sri Lanka eases ban on all-rounder Gunathilaka

    Pakistan , on the other hand, seemed to have found their touch. "We have to wait and see who the players will be". Sri Lanka's supporting, meanwhile, has agreed to travel to Lahore as well.
    #MeToo's for Every Woman Ever Sexually Harassed, Alyssa Milano Says

    #MeToo's for Every Woman Ever Sexually Harassed, Alyssa Milano Says

    A number of singers, actors and actresses including Debra Messing , Lady Gaga and Evan Rachel Wood have added their support. The Wrap said it wasn't long before responses began to pour in, causing #MeToo to trend.
  • Two officers who dragged passenger off United flight fired

    Two officers who dragged passenger off United flight fired

    Dao lost two teeth and broke his nose as a result, and attorneys said he was left deeply traumatized by the episode. It was also revealed that a supervisor was sacked after the deliberate removal of facts from an employee report.
    Google Maps kills off its new calorie counter

    Google Maps kills off its new calorie counter

    Basically, it wants to try to encourage you to walk instead of driving by showing you how many calories you'd burn. Citymapper , for example, has a calorie estimate feature.

    Jurgen Klopp Reports "Absolutely Good News" On Injured Liverpool Star

    "Of course, it's better if Adam could have scored in one game or another, but there is nothing we can do about this". But Reds manager Jurgen Klopp has ruled out any further squad rotation for the Group E game .


Latest news

Ford Recalling 1.3 Million Pickups Over Door Issue
Ford testing shows that the faulty latches are failing after exposure to water, which could cause the door to open randomly. Ford said it continues to expect full-year adjusted earnings in the range of $1.65 to $1.85‍ per share.

Manhunt underway after 3 killed at Maryland office shooting
The two surviving victims are in critical condition at Baltimore's Shock Trauma Center, the hospital tweeted at noon Wednesday. A police chief says the Maryland office park gunman had "beefs" with a man in Wilmington, Delaware, and shot him twice.

The cost of being president: Forbes 400 shows Donald Trump's wealth drops
Amazon's chief Jeff Bezos held on to the second position for the second consecutive year, with a net worth of $81.5 billion. According to Forbes , the White House did not immediately respond to a request for comment on Trump's ranking.

Russia Will Issue National Cryptocurrency 'CryptoRuble'
Minister of Communications and Mass Media of Russia Nikolai Nikiforov gave a reason why Russia chose to introduce CryptoRuble . The online economy has made it hard and a concern for governments to collect taxes on an increasing digital sales industry.

Microsoft Unveils More Powerful Surface Book Laptop
While revenue from the Surface division is down, Panay says that the company remains committed to the unit . Battery life stretches to 17 hours (video playback) in a docked configuration and 5 hours in tablet mode .

Sen. Reed urges Trump to stop the 'harmful' rhetoric on North Korea
The talks come as the USA and South Korea hold joint naval drills this week. Thus, country has every right to possess nuclear weapons in self-defense.

Facebook acquires tbh app, plans to make it a new Instagram
It's not yet clear how the addition of tbh's team will impact Facebook's services and overall mission. As per the reports, Facebook has paid under $100 million for the startup app.

Bring Amazon Alexa into your vehicle with new Garmin Speak
Today, Garmin has teamed up with Amazon to announce the Garmin Speak with Amazon Alexa. The device is available now via Best Buy and Amazon for $149.99 Dollars .

Bloody end for Hapilon, Maute
Marawi City is six times bigger than the city of Manila, and was home to a population of 200,000 before the fighting began. On Sept. 21, Duterte said that he would lift the martial law once the Marawi conflict is over and cleared of militants.

Trump Jokes Pence 'Wants To Hang' All Gay People
He said that, when people met with Trump after stopping by Pence's office, Trump would ask them, " Did Mike make you pray? ". Mike Pence , the Vice President of the United States, does not believe in evolution.

Researchers uncover flaw that makes Wi-Fi vulnerable to hacks
This is a major deal because WPA2 is the most secure and popular security protocol that is in general use. The interesting thing about this is that it affects devices running Android Marshmallow 6.0 or higher.

McCain Warns of 'Severe Consequences' for Iraq Over Baghdad's Clashes With Kurds
He did so by holding a referendum on Kurdish independence on 25 September that was greeted with enthusiasm by Iraqi Kurds. Kirkuk, long claimed by the Kurds as part of their historic territory, has emerged as the main flashpoint in the dispute.

Tejas food poisoning: From scathing CAG report to continued quality issues
The food is supplied by caterer contracted by the Indian Railway Catering and Tourism Corporation (IRCTC). Here are symptoms of food poisoning .

Big win for Congress in Gurdaspur Lok Sabha by
Sunil Jakhar of the Congress won the Gurdaspur Lok Sabha seat, defeating the BJPs Swaran Salaria by more than 1.93 lakh votes. Counting was held today in Gurdaspur and Pathankot towns.

Rose McGowan goes off on James Corden's Harvey Weinstein jokes
Unfortunately for comedian and United States late night host James Corden , that's what he elected to do. Corden took to Twitter to apologise. " To be clear, sexual assault is no laughing matter ", he wrote .

Other news