Why is the universe expanding at an ever-increasing rate? This is one of the most exciting yet unresolved questions in modern ...

Hubble’s updated view of NGC 3370, richer in light and detail than ever before, deepens our understanding of both the galaxy ...

Dark-energy evidence suggests the universe will end in a “big crunch” roughly 20 billion years from now. The universe is nearing the halfway point of what may be a 33-billion-year lifespan, according ...

Astrophysicist Neil deGrasse Tyson joins Natasha Verma to unlock big cosmic questions with wit and clarity: Have aliens ...

How did the universe come into being? There are a multitude of theories on this subject. In a Physical Review Letters paper, ...

If the universe is expanding, then what is it expanding into, and what is it expanding from? Where's the edge of the universe ...

Most explanations rely on "dark energy" to explain the Universe's accelerating expansion rate, but a new study takes a different path.

Astronomers have unveiled a new catalog of massive galaxy clusters, revealing new insight on the evolution of the universe ...

Scientists figured out that the universe is billions of years old — after years of reading ancient rocks and dying stars, and ...