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Have we really measured gravitational waves?


Gravitational waves are ripples in spacetime caused by cosmic ...

It passed through our planet, hitting LIGO Livingston seven milliseconds before arriving at LIGO Hanford. "We were very lucky," says Reitze. " ...

How can gravitational waves be measured? - Socratic

Gravitational waves are measured, or detected rather, by the "swinging" of mirrors. Explanation: "All you need to build a gravitational-wave ...

Pushing the boundaries of gravitational wave detection - YouTube

What does it feel like to be part of a history making discovery? The thrill of detecting the first gravitational waves, which originated ...

Gravitational Wave Detectors - an overview | ScienceDirect Topics

Pulsars are extremely stable clocks and by measuring irregularities in their pulses we expect to set upper limits on background gravitational waves (see next ...

Gravitational waves: Everything you need to know - Medium

But this was only an indirect detection of gravitational waves — it's kind of like the difference between finding a footprint left by Big Foot ...

Gravitational waves detected, proving Einstein right again - CNN

But is LIGO correct? Have we really detected gravitational waves? Scientists have what they call a “five-sigma” standard of proof, and LIGO's ...

Astronomers find a new way to detect gravitational waves - Science

Researchers have found a new way to search for gravitational waves, the ripples in spacetime caused by massive celestial objects exploding, whirling, or ...

How Physicists Detected The Gravitational Wave Background

0:00 Measuring the lowest frequency Gravitational Waves in the Universe ; 1:25 What are gravitational waves? ; 4:08 The International Pulsar ...

Tests of general relativity with gravitational waves can go awry

There have been dozens of subsequent gravitational wave detections, and more will surely follow. Each new measurement helps physicists test ...

Einstein's gravitational waves 'seen' from black holes - BBC News

Scientists are claiming a stunning discovery in their quest to fully understand gravity. They have observed the warping of space-time generated by the ...

Gravitational waves - SciLine

Since the first announcement in 2016, gravitational-wave detections have become more commonplace as the sensitivity of the detectors improved. A ...

At Last, There's Evidence of Low-Frequency Gravitational Waves

... measure the waves, which they believe emanated ... But the gravitational waves the NANOGrav scientists look for are very different: They ...

Why gravitational waves are of supermassive importance - Futurum

Half a gravitational-wave cycle later, the opposites true. The LIGO experiments exploit this fact to measure the difference in time it takes a pulse of a laser ...

Gravitational Waves Through Time: Scientific Significance, Detection ...

Although only extremely massive objects such as neutron stars and black holes are able to produce gravitational waves at discernible levels for our current ...

Gravitational Waves Won the Physics Nobel Prize—Here's Why

These cosmic cataclysms are so energetic they radiate gravitational waves, which we can directly observe as distortions in the otherwise tough, ...

Gravitational waves: Why they're such a big deal | CBC News

... theory of relativity 100 years ago, have been detected three more times. Here's what they are and why the discovery is a really big deal.

Gravitational waves could reveal hidden histories of black holes

Since they were first observed in 2015, gravitational waves have enabled scientists to detect large numbers of previously unseen black holes ...

Understanding gravitational waves: Ripples in spacetime explained

For over 100 years, scientists have understood that the Universe is humming a symphony of gravitational waves, tiny ripples in spacetime ...

We've just doubled the number of gravitational waves we can find

But now, researchers at the Laser Interferometer Gravitational-Wave Observatory (LIGO) have found a way to beat this quantum noise. And as a ...

Why is the detection of gravitational waves so significant?

Gravitational waves are qualitatively different from other detections. As much as we have tested GR before, it's still reassuring to find a ...