The Pope's last day, Easter Sunday, was marked by an appearance on the Loggia balcony of St. Peter's Basilica, meeting the ...

From Lowell Observatory to Kitt Peak to Mount Graham, here are the 11 best planetariums and observatories in Arizona and ...

While it's much smaller than the largest supermassive black holes detected, it's still a whopper considering how early in the ...

Webb detected rare neon gas in M83. This may signal a hidden black hole, challenging the idea that the galaxy has only ...

Astronomers have long struggled with a troubling puzzle: a significant portion of normal matter in the universe appeared to ...

No explosive birth needed: The discovery suggests this black hole likely formed through direct collapse, a quiet implosion ...

A supermassive black hole dormant for decades has just awakened in a distant galaxy. This sudden activation provides a unique ...

The rotating model, which does not break any known law of physics, suggests the universe could spin around once every 500 billion years. This would be far too slowly to detect easily, but enough to ...

The quasi-periodic eruptions of X-rays from a black hole 300 million light-years away are unlike any researchers have ever ...

A supermassive black hole that scientists have nicknamed "Ansky" is now awake after a long dormant period, emitting powerful ...

A mysterious black hole in a distant galaxy just woke up after decades of silence—and it’s putting on a cosmic light show!

Scientists have uncovered the strongest evidence yet for the existence of elusive intermediate-mass black holes (IMBHs), long ...