Space.com said Friday that a radio signal has been recorded 9 billion light-years from Earth in a record.
The signal is detected by a unique wavelength known as the “21cm line” or “hydrogen line”, which is said to be emitted by neutral hydrogen atoms.
A signal captured by the Giant Metrewave Radio Telescope in India could mean just that. Scientists can start to investigate The report pointed to the formation of some of the oldest stars and galaxies.
The researchers detected the signal from a “star-forming galaxy” called SDSSJ0826+5630, which was emitted when the 13.8-billion-year-old Milky Way – the galaxy in which Earth resides – was only 4.9 billion years old.
“It’s equivalent bachelor looklead author and postdoctoral cosmologist at McGill University, Arnab Chakraborty, said in a statement this week.
Galaxies are said to emit light in a wide range of radio wavelengths.. But until recently, only radio waves with a wavelength of 21 cm were recorded from nearby galaxies.
“A galaxy emits different types of radio signals. Until now, it was only possible to pick up this specific signal from a nearby galaxy, which limits our knowledge of galaxies closest to Earth,” Chakraborty said.
The signal allowed astronomers to measure the galaxy’s gas content and thus find the galaxy’s mass.
The report said that this project led scientists to conclude that this distant galaxy has twice the mass of stars visible from Earth.
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