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Astronomers have detected one of the most distant and energetic mysterious fast radio bursts in space, a millisecond-long blast of radio waves that traveled 8 billion years to reach Earth.
Until now, the oldest-known such burst dated to 5 billion years ago, making this one 3 billion years older. The universe is about 13.8 billion years old. For comparison, Earth is about 4.5 billion ...
Astronomers detected a fast radio burst from a galaxy 8 billion light-years away. It's a new record, and the signal's source is still a mystery. Scientists detect 8 billion-year-old radio burst.
The source is a galaxy 3.6 billion light-years away. The galaxy is nearly as large as the Milky Way and about 1000 times larger than the source galaxy of FRB 121102. While the latter is an active site of star formation and a likely place for magnetars , the source of FRB 180924 is an older and less active galaxy.
Based on the 2013 data, the universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. On 5 February 2015, new data was released by the Planck mission, according to which the age of the universe is 13.799 ± 0.021 billion years old and the Hubble constant was measured to be 67.74 ± 0.46 (km/s)/Mpc. [48]
The cosmic microwave background is blackbody background radiation left over from the Big Bang (the rapid expansion, roughly 13.8 billion years ago, [16] that was the beginning of the universe. Extragalactic pulses - Fast Radio Burst
Several galaxies merged nearly 8 billion years ago. The energy they released was picked up by Australian space telescopes in June 2022. Scientists discover 8-billion-year-old fast radio burst
The discovery of cosmic microwave background radiation constitutes a major development in modern physical cosmology.In 1964, US physicist Arno Allan Penzias and radio-astronomer Robert Woodrow Wilson discovered the cosmic microwave background (CMB), estimating its temperature as 3.5 K, as they experimented with the Holmdel Horn Antenna.