Space is already filled with plenty of mysteries, and black holes may be among the strangest. Here are some of the questions ...

In simple terms, that assertion is correct, but for those with an expertise in the field, the longer answer to who did it ...

Readers offer their opinions on how the premiers of Saskatchewan and Alberta are responding to threats from Donald Trump and on Pierre Poilievre.

At least 20 individuals, believed to be Bangladeshi nationals, have died in a boat tragedy in the Mediterranean off the eastern coast of Libya ...