Two passenger trains collided in Egypt’s Nile Delta Saturday, killing at least two people, authorities said. The crash occurred in the city of Zagazig, the provincial capital of Sharqiya province, the ...

Black holes are rarely isolated. Typically, they are surrounded by a massive amount of matter— gas left over after the black ...

Cortez Hill is tucked away east of Little Italy and south of Balboa Park. Interstate 5 is its northern boundary and Front ...

Volcanoes are not only terrestrial; they can also be underwater—and the latter can host their own ecosystems. After all, a hole in the Earth’s crust from which hot magma spews is not just a source of ...

In the skies over Al Ain, in the United Arab Emirates, pilot Mark Newman waits for the signal. When it comes, he flicks a few silver switches on a panel by his leg, twists two black dials, then punche ...

New research suggests that black holes may actually be "frozen stars," bizarre quantum objects that lack a singularity and an ...

Astronomers have observed three types of black holes in the universe. Stellar-mass black holes formed from the collapse of a ...

Scientists have discovered the longest pair of jets streaming from a black hole in a distant galaxy. Black holes eat most ...

"Primordial black holes do not live in the solar system. Rather, they’re streaming through the universe, doing their own thing. And the probability is, they’re going through the inner solar system at ...

Spanning 23 million light years, or 220 Milky Way galaxies, a set of giant, newly discovered black hole jets known as Porphyrion may change our understanding of black holes and the structure of the un ...

The energetic streams are together 23 million light-years in length—roughly as long as 140 Milky Way galaxies lined end to end ...