9/9/2026
Dark Matter · cosmic-webs
Astronomers detect ancient hydrogen signal that could help map the Universe
Filed by Dr. Kai Vega
Astronomers have detected an exceptionally faint hydrogen radio signal from billions of light-years away using South Africa’s MeerKAT telescope. Instead of finding galaxies one at a time, the technique measures their combined hydrogen glow across enormous stretches of space. The successful detection shows that astronomers may soon be able to create much larger 3D maps of the Universe.
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Dr. Kai Vega
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