Signals from 8 Billion Years Ago Reach Earth Tech – 9 hours ago

Jakarta, CNBC Indonesia – Astronomers in Australia received signals from a galaxy 8 billion light years away. Radio barrage emission event (fast radio burst) is called FRB 20220610A.

At 8 billion years old, FRB 20220610A is the “oldest” FRB ever recorded by humans. The energy emitted is also very large, exceeding the theoretical maximum point by 3.5 times.

Scientists still don’t know the source of the FRBs detected on Earth. Some FRBs are detected only once, some occur repeatedly. The repeatedly detected FRB signal is thought to originate from a neutron star surrounding an object.


Neutron stars have enormous magnetic power. The interaction of a neutron star with the surrounding plasma creates a burst of energy in the form of radio waves over a short period of time.

Hundreds of FBRs have been detected from Earth since 2007.

“This explosion has energy equivalent to the energy produced by the Sun in 30 years. This energy is enough to make popcorn in a bowl the size of twice the Sun,” said Ryan Shannon from Swinburne University of Technology, as quoted by New Scientist, Monday (23/10/2023) .

Shannon and his team detected the 8 billion year old signal using the Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope.

According to him, radio signals such as FRB can solve the mysteries of space.

“We then used the European Southern Observatory (ESO) Very Large Telescope (VLT) in Chile to search for the source galaxy, which turned out to be much older and more distant than other FRB sources,” said Stuart Ryder from Macquarie University, quoted by IFL Science.

To date, astronomers have only succeeded in detecting the home galaxy of 50 FRBs. Research on FRBs can be used to search for “lost material” in space.

“If we count the amount of normal material in space, the atoms that make up all of us, about half is still missing. We estimate that this missing material is hidden in the space between galaxies. However, it is so hot, this material cannot be seen using normal techniques,” said Shannon.

FRB can be used to detect this ionized material. “Even in nearly empty space they can help see all the electrons, so we can estimate how much ‘stuff’ there is among the galaxies,” Shannon said.

[Gambas:Video CNBC]

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