One outstanding mystery in astrophysics is known as the "final parsec problem." Simulations predict that binary black holes should stall…
When galaxies merge, we expect them to produce binary black holes (BBHs.) BBHs orbit one another closely, and when they…
In September 2022, an automated sky survey detected what seemed to be a supernova explosion about one billion light-years away.…
Entropy is one of those fearsomely deep concepts that form the core of entire fields of physics (in this case,…
While physics tells us that information can neither be created nor destroyed (if information could be created or destroyed, then…
Black holes. The name is said to come from the Black Hole of Calcutta, an infamous prison that you cannot…
One of the big questions in cosmology asks when black holes first showed up in the early Universe. Recently astronomers…
As far as we know, black holes can only be formed by the death of massive stars, but a persistent…
Quasars, short for quasi-stellar objects, are one of the most powerful and luminous classes of objects in our Universe. A…
When the Universe erupted into existence with the Big Bang, all of its matter was compressed into a tiny area.…