<![CDATA[ Gravitational waves may have provided the first tantalizing evidence of tiny primordial black holes born during the Big Bang, which could account for dark matter. ]]>
Primordial black holes are hypothetical black holes that could have formed in the early universe due to density fluctuations. They are considered potential candidates for dark matter and could provide insights into the conditions of the universe shortly after the Big Bang.
Gravitational waves are ripples in spacetime caused by the acceleration of massive objects, such as merging neutron stars or black holes. They provide a new way to observe the universe and can carry information about their origins and the nature of gravity.