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.
from Top Technology News -- ScienceDaily https://ift.tt/eJ9x8rF
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