Image courtesy of EHT Collaboration.
Joel Kontinen
Does dark matter exist? Some researchers think that it will not but some are adamant that it will in the central black hole that defines our galaxy.
At the centre of our galaxy lies a supermassive black hole
called Sagittarius A* – but one group of researchers is suggesting it may not
be a black hole at all. The team says that it, and other black holes around its
size, may actually be clumps of dark matter.
Dark
matter, so named because it doesn’t seem to interact with light or regular
matter in any way except gravitationally, makes up about 85 per cent of the
total matter in the universe, but we know very little about it. What we do
know, because of the way galaxies rotate, is that most galaxies are embedded in
a halo of the stuff. “We know it has to be at the outskirts of galaxies, but we
don’t know what happens at the very centre,” says Valentina
Crespi at the National University of La Plata (UNLP) in Argentina.
Source:
Leah
Crane 2026
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