Astronomy has just revealed a cosmic monster of unprecedented scale, a black hole so colossal that it pushes the boundaries ...

Quirks & Quarks is having its 50th anniversary this fall. Bob McDonald shares his appreciation for the people behind the ...

Astronomers have uncovered one of the earliest and most complex galaxy mergers ever observed — a system involving at least ...

New computer simulations suggest the first magnetic fields that emerged after the Big Bang were much weaker than expected — ...

Our understanding of cosmology hinges on how well we know our own local universe, which remains poorly mapped and poorly ...

— Live Science crossword puzzle #3: Mathematical term for a whole number — 5 down ...

A backward, mirror universe could explain the existence of dark matter. If an anti-universe exists, it would run backward in ...

While radio waves are the method of choice when searching for signals of intelligent alien life, other detectable signs also ...

Astronomers have discovered the most monstrous supermassive black hole ever. At 36 billion times more mass than our sun, it’s ...

That cosmologists cannot agree on one of the most elementary facts about the universe is striking enough. But that uncertainty produces others, too: it makes it impossible to calculate an exact age ...

A new study may have given us a glimpse of when the "Big Crunch" will take place and the universe will start shrinking.