If gravitational waves are at play, the laser light will have travelled a slightly different distance and that variation is detected.
In Feburary a year ago, the Ligo announced they had detected such a ripple, believed to be caused by two black holes colliding. It took 1.3 billion years for the waves to arrive at the LIGO detector in the USA.
"I was so much hoping for this wonderful news", said Vicky Kalogera, a gravitational-wave astrophysicist at Northwestern University who contributed to the historic detections of gravitational waves.
Announcing the winners in Stockholm on Tuesday, the Nobel committee described Ligo as the "most sensitive instrument ever devised by man".
LIGO, the Laser Interferometer Gravitational-Wave Observatory, is a collaborative project with over 1,000 researchers from more than 20 countries. It is the first joint detection of gravitational waves with the Virgo and LIGO collaborations.
110 Nobel prize for physics was awarded in 1901 to 2016, among them only two were women.
"It's very sad that one of the UK's gravitational-wave pioneers, Ron Drever, didn't live to see this fantastic recognition of these ground-breaking discoveries".
All three scientists are members of the LIGO/VIRGO Collaboration. In 1915, Albert Einstein explained in his general theory of relativity that gravity comes about when mass and energy warp spacetime, causing freely falling objects to follow curving trajectories. Gravitational waves compress space-time in one direction and stretch it in another, giving one half of the beam a shortcut and sending the other on a longer trip. The fourth gravitational wave, observed on August 14, 2017, was made using two LIGO detectors in the USA - loacated in Livingston, Louisiana, and Hanford, Washington - and the Virgo detector in Italy.
For the past 25 years, the physics prize has been shared among multiple winners.
"It's very very exciting that it worked out in the end, that we are actually detecting things and adding to the knowledge through gravitational waves of what goes on in the universe".
"(They are) people who have been thinking about this, sometimes failing and slowly getting the technology together to do this - it's exciting that they're finally doing this", Weiss said, speaking at the conference by phone.
Eagles key defensive players Jordan Hicks and Rodney McLeod , are listed as questionable and are expected to play on Sunday. Don't be surprised if the Chargers spring the upset with the Eagles traveling across the country for a late start.
A majority of the region's residents do however support holding a referendum - so the vote could go either way. But Madrid snubs Catalan officials by refusing to grant greater financial independence to the region.
Meanwhile, Brighton boss Chris Hughton struck a positive note after the game, pointing to his side's "spirited performance". It was little surprise when Iwobi doubled the hosts' advantage with a vintage Arsenal goal 11 minutes into the second half.
The command said that it regrets the harm caused to non-combatants, and that the incident is under investigation. Afghanistan could become a safe haven for terrorists if global troops withdrew from the country, he warned.
Mendy, City's only recognised left-back, was injured in the first half of Saturday's Premier League home win over Crystal Palace. Mendy became the world's most expensive defender in the summer after joining City from Monaco for £52m.
For him to turn in the type of great performance he's capable of, he's probably going to have to avoid giving up the long ball. But there's a reason that the Twins have +205 betting odds and the Yankees are -240 favorites, via OddsShark .
Alvaro Morata has pulled out of Spain's squad for their upcoming clashes with Albania and Israel due to injury. Chelsea will now monitor Morata's recovery and hope that he is fit to face Crystal Palace on October 14.
In the end, Monty Hall said that he wanted to be remembered for helping people rather than his celebrity status. But it'll forever be Let's Make A Deal , which debuted in December of 1963, that is Monty Hall's legacy.
The pass rush actually generated some pressure against the Cowboys' offensive line, but it was largely unable to finish the play. He needs three TDs to tie Hall of Famer Emmitt Smith of Dallas and Washington's Stephen Davis for most in first four games.
The only time the Cowboys will be vulnerable is when Taumalolo leaves the field for a rest in the middle of the game. We just tried to limit his impact on the game, to limit what he is capable of doing and make him uncomfortable.
Bayern was already dominating the Bundesliga with a record four straight titles and the fifth was considered a minimum return. Ancelotti's under-performing Bayern are back in action on Sunday, away to Hertha Berlin in the Bundesliga.
Bangladesh, Myanmar agree to discuss return of Rohingya
Meanwhile, Kwe, like other Myanmar government spokespersons, declined to speak to the media, according to Reuters. Ali told reporters that the counties had agreed to form a joint working group to start work on repatriation.
Parliament makes way for Sharif to head party
The NAB official told the court that orders had been delivered to the security guard at the residence of Sharif family in Lahore. Meanwhile, Senator Mushahid Hussain said that all the hurdles in electing Nawaz Sharif as a party president are cleared.
Stars Play-by-Play Announcer Dave Strader Dies
It was the first year of the Adirondack Red Wings and what a great job for a local guy to get with the new pro team. The broadcast of Strader's return to the booth was honored by two Lone Star Emmy nominations announced this week.
Pakistan 266-4 at close in reply to Sri Lanka's 419
But over five days, the plot thickens and the pace of the match varies, leading to nerve-wracking moments for both sides. It's unfortunate that one of the finest Tests in recent times had to be hosted amidst empty stands in Abu Dhabi.
Red Bull driver Verstappen wins Malaysian Grand Prix
Lewis Hamilton and Valtteri Bottas struggled with grip and went off track into the gravel within moments of each other. It happened, there's not much you can do, and therefore not much point in trying to look at it again and again.
FEMA: Progress, But 'Hard Day' in Puerto Rico
Trump on Saturday blasted her and those in the territory, whom he said "want everything to be done for them". Cruz on Sunday posted twin tweets in Spanish and England saying, "The goal is one: saving lives".
Need to replicate home success overseas: Virat Kohli
India never recovered from the two quick wickets and went on to lose by 21 runs, handing Australia their first win of the series. India's openers got them past the 100-run mark before Ajinkya Rahane (53) fell to Kane Richardson.
Benitez on Liverpool return: 'You never know'
It's not something that will change my approach, or that I will be more comfortable if I sign a 20-year-old contract. It is quite hard because I have been in Italy, or Madrid, or moving around. "It hasn't come at the right time ".