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Distant Galaxy's 'Mega-Laser' Beam Detected
16 Mar
Summary
- A powerful hydroxyl megamaser signal was detected from a galaxy 8 billion light-years away.
- The MeerKAT radio telescope in South Africa intercepted the mysterious cosmic signal.
- Gravitational lensing from a foreground galaxy amplified the distant radio waves.
An incredibly distant and powerful signal, described as a 'mega-laser' beam, has been detected from a galaxy over 8 billion light-years away. This hydroxyl megamaser is the most distant ever recorded, captured by the advanced MeerKAT radio telescope in South Africa.
A hydroxyl megamaser is a natural cosmic phenomenon where colliding galaxies create intensely bright radio waves. The signal's extreme distance means we are observing it as it existed when the universe was less than half its current age.
This discovery was significantly aided by gravitational lensing. A massive galaxy positioned between Earth and the distant source acted like a cosmic magnifying glass, bending space-time and amplifying the faint radio waves. This rare effect made the signal bright enough for the MeerKAT telescope to detect, enabling a remarkable scientific find.
