Breakthrough in Dark Matter Hunt: Scientists Claim First Direct Evidence
A groundbreaking study published in a prestigious scientific journal claims to have provided the first direct evidence of dark matter, a mysterious substance that has puzzled scientists for nearly a century. The discovery, made by a team of researchers led by astrophysicist Tomonori Totani at the University of Tokyo, appears to show gamma rays emanating from the center of the Milky Way galaxy exhibiting the signature of this elusive substance.
According to Totani, the observations suggest that dark matter is composed of massive particles 500 times heavier than protons, which are believed to interact with normal matter only weakly. When these particles collide, they can annihilate each other, releasing gamma rays in a burst. Totani analyzed data from NASA's Fermi Gamma-ray Space Telescope, a powerful tool designed to detect the most energetic photons in the electromagnetic spectrum.
The researchers spotted a pattern of gamma rays that appears to match the shape of the dark matter halo surrounding the galaxy. "This closely matches the properties of gamma-ray radiation predicted to be emitted by dark matter," Totani said, sparking excitement among scientists.
However, other experts remain cautious, citing the need for more work to rule out alternative explanations and background emissions that could mimic the signals. Prof Justin Read at the University of Surrey argued that the lack of significant signals from other galaxies strongly suggests that the observed gamma rays are not due to dark matter annihilation. Prof Kinwah Wu, a theoretical astrophysicist at UCL, echoed this sentiment, urging caution until more evidence is presented.
While Totani's discovery is considered a major breakthrough, it is essential to note that much remains unknown about dark matter. The study's findings have sparked debate and renewed interest in the search for this enigmatic substance, which is thought to make up 27% of the universe's mass-energy budget.
A groundbreaking study published in a prestigious scientific journal claims to have provided the first direct evidence of dark matter, a mysterious substance that has puzzled scientists for nearly a century. The discovery, made by a team of researchers led by astrophysicist Tomonori Totani at the University of Tokyo, appears to show gamma rays emanating from the center of the Milky Way galaxy exhibiting the signature of this elusive substance.
According to Totani, the observations suggest that dark matter is composed of massive particles 500 times heavier than protons, which are believed to interact with normal matter only weakly. When these particles collide, they can annihilate each other, releasing gamma rays in a burst. Totani analyzed data from NASA's Fermi Gamma-ray Space Telescope, a powerful tool designed to detect the most energetic photons in the electromagnetic spectrum.
The researchers spotted a pattern of gamma rays that appears to match the shape of the dark matter halo surrounding the galaxy. "This closely matches the properties of gamma-ray radiation predicted to be emitted by dark matter," Totani said, sparking excitement among scientists.
However, other experts remain cautious, citing the need for more work to rule out alternative explanations and background emissions that could mimic the signals. Prof Justin Read at the University of Surrey argued that the lack of significant signals from other galaxies strongly suggests that the observed gamma rays are not due to dark matter annihilation. Prof Kinwah Wu, a theoretical astrophysicist at UCL, echoed this sentiment, urging caution until more evidence is presented.
While Totani's discovery is considered a major breakthrough, it is essential to note that much remains unknown about dark matter. The study's findings have sparked debate and renewed interest in the search for this enigmatic substance, which is thought to make up 27% of the universe's mass-energy budget.