/cdn.vox-cdn.com/uploads/chorus_asset/file/24016885/STK093_Google_04.jpg)
/cdn.vox-cdn.com/uploads/chorus_asset/file/24808816/Starfield__The_Settled_Systems___Supra_Et_Ultra_____Starfield__The_Settled_Systems___Supra_Et_Ultra_2023_7_25_94252.263_1440p_streamshot.png)
If you’re as nerdy as us, you must have seen scientists freaking out over the past few days about an unprecedented discovery that might change our minds.
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has achieved a significant milestone by successfully detecting the gravitational wave background, an unprecedented achievement in scientific research.
On Thursday, astronomers from various locations globally revealed their discovery of compelling evidence supporting the existence of gravitational waves of a previously hypothesized type, which produce a pervasive “background hum” that reverberates throughout the universe.
Credit: Daniel Futselaar/artsource.nl/Max-Planck-Institut für Radioastronomy
Gravitational waves, initially theorized by Albert Einstein a century ago, refer to fluctuations in the fabric of the universe that propagate unhindered through all matter at nearly the speed of light.
See also: Scientists finally have answer for first detection of gravitational waves from neutron stars after 5 years
In 2015, observatories in the United States and Italy made an unprecedented observation of the first gravitational waves produced by the collision of two black holes. These gravitational waves, known as “high-frequency” waves, were generated by a singular and rapid cosmic event, producing a powerful and brief burst of waves that reached Earth.
What is a new discovery?
Scientists have long been searching for the detection of low-frequency gravitational waves, which are believed to circulate continuously through space, similar to ambient background noise.
Collaborating within the International Pulsar Timing Array Consortium, researchers operating gravitational wave detectors across several continents have now revealed fascinating findings that provide substantial confirmation of the existence of these background waves.
In the quest to detect low-frequency gravitational waves, astronomers have turned their attention to pulsars, the remnants of stars that have undergone supernova explosions.
By studying these pulsars, the astronomers aimed to identify the distinctive stretching and compression effects indicative of low-frequency gravitational waves.
How did he achieve this?
A global network of radio telescopes focused their attention on 115 pulsars spread across the Milky Way.
By carefully measuring subtle anomalies in the timing of these pulsar pulses, researchers painstakingly searched for distinctive indicators of gravitational waves.
Led by French astronomer Antoine Petito, the team achieved an extraordinary feat by detecting microscopic variations of less than one millionth of a second over a period of more than two decades.
According to the theory, the origin of these waves is attributed to pairs of supermassive black holes located at the core of galaxies, which are slowly undergoing the process of merger.
Is this theory proven?
In discussing their findings, the scientists emphasized that they have not yet achieved definitive “identification” of the waves, as they have not reached the rigorous standard of five sigma certainty, which is only one in a million. indicates possibility. The result is a statistical discrepancy.
Keith expressed some disappointment, saying that they were well below the threshold. However, he also noted that there is a 99 percent chance that the evidence strongly supports the presence of gravitational waves.
Cover Image: Tobias Roetsch/Future
If you’re as nerdy as us, you must have seen scientists freaking out over the past few days about an unprecedented discovery that might change our minds.
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has achieved a significant milestone by successfully detecting the gravitational wave background, an unprecedented achievement in scientific research.
On Thursday, astronomers from various locations globally revealed their discovery of compelling evidence supporting the existence of gravitational waves of a previously hypothesized type, which produce a pervasive “background hum” that reverberates throughout the universe.
Credit: Daniel Futselaar/artsource.nl/Max-Planck-Institut für Radioastronomy
Gravitational waves, initially theorized by Albert Einstein a century ago, refer to fluctuations in the fabric of the universe that propagate unhindered through all matter at nearly the speed of light.
See also: Scientists finally have answer for first detection of gravitational waves from neutron stars after 5 years
In 2015, observatories in the United States and Italy made an unprecedented observation of the first gravitational waves produced by the collision of two black holes. These gravitational waves, known as “high-frequency” waves, were generated by a singular and rapid cosmic event, producing a powerful and brief burst of waves that reached Earth.
What is a new discovery?
Scientists have long been searching for the detection of low-frequency gravitational waves, which are believed to circulate continuously through space, similar to ambient background noise.
Collaborating within the International Pulsar Timing Array Consortium, researchers operating gravitational wave detectors across several continents have now revealed fascinating findings that provide substantial confirmation of the existence of these background waves.
In the quest to detect low-frequency gravitational waves, astronomers have turned their attention to pulsars, the remnants of stars that have undergone supernova explosions.
By studying these pulsars, the astronomers aimed to identify the distinctive stretching and compression effects indicative of low-frequency gravitational waves.
How did he achieve this?
A global network of radio telescopes focused their attention on 115 pulsars spread across the Milky Way.
By carefully measuring subtle anomalies in the timing of these pulsar pulses, researchers painstakingly searched for distinctive indicators of gravitational waves.
Led by French astronomer Antoine Petito, the team achieved an extraordinary feat by detecting microscopic variations of less than one millionth of a second over a period of more than two decades.
According to the theory, the origin of these waves is attributed to pairs of supermassive black holes located at the core of galaxies, which are slowly undergoing the process of merger.
Is this theory proven?
In discussing their findings, the scientists emphasized that they have not yet achieved definitive “identification” of the waves, as they have not reached the rigorous standard of five sigma certainty, which is only one in a million. indicates possibility. The result is a statistical discrepancy.
Keith expressed some disappointment, saying that they were well below the threshold. However, he also noted that there is a 99 percent chance that the evidence strongly supports the presence of gravitational waves.
Cover Image: Tobias Roetsch/Future
