Water can be seen flowing into the world's largest drain hole, measuring 22 metres in diameter, that has been dubbed "a portal to the middle of the Earth" at the Monticello Dam in California ...

The biggest hole formed from a collapsed star in the Milky Way Galaxy resides 2,000 light years away from Earth in the Aquila constellation. Researchers spotted the black hole when they noted the ...

The giant black hole has a mass of 30 billion suns and sits at the center of a galaxy located hundreds of millions of light-years from Earth. Astronomers call the cosmic monster an ultramassive ...