Primordial black holes could inhabit the modern-day cosmos, making them responsible for the phenomenon of dark matter, according to new research. In the extremely early universe, primordial black ...

In the extremely early universe, primordial black holes could acquire a "dark charge," giving them an unnaturally long lifetime. This makes them an interesting, if exotic, candidate for dark ...

We’ve seen this before: International sanctions led Russia to rely on a dark fleet ... defined border corridors. That could change drastically if Mr. Trump’s actions lead to a black market ...

Iconic landmarks and city skylines around the world have gone dark as millions joined Earth Hour, a global campaign by environmental group World Wildlife Fund calling for urgent action to tackle ...

After the Civil War, those torn from loved ones and family members by slaveowners placed newspaper ads in the hope of reunion ...