The universe exists because matter and antimatter are not good friends. Is there a scientific reason why the universe exists?

Astronomers once thought the universe's first stars (made of hydrogen and helium) were nearly all giants, hundreds to ...

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

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

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 ...

Mathematics and numbers are not just abstract ideas, but, as our sages tell us in so many places, they are essential to the ...

What was the universe like in the first few hundreds of millions of years after it came into existence? How did the first ...

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

Just as ocean waves shape our shores, ripples in space-time may have once set the Universe on an evolutionary path that led to the cosmos as we see it today.

And although it has the highest radius of all the stars, it is not actually the most massive, as UY Scuti is about 30 times the weight of our sun, a stark reminder that you can't judge a star entirely ...

Distant quasar J043947.08+163415.7 was discovered using gravitational lensing. It is the brightest object yet discovered in ...

— Live Science crossword puzzle #5: Substance with a pH value less than 7 — 2 down ...