Plankton are the invisible engines of life on Earth, producing much of the planet's oxygen and forming the foundation of the ...

On human timescales, the universe may as well be eternal. It’ll be here long after our species and our planet are gone, but it does have an end. The generally accepted long-term evolution of the ...

Such an exponential expansion may seem minor, but it is equivalent to a grape in the palm of your hand swelling to become ...

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 ...

If recent discoveries that dark energy is evolving hold any water, our Universe will collapse under its own gravity on a ...

The ‘inflationary’ model of cosmology explains many large-scale features of the Universe as the result of a primordial period ...

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

Hubble’s updated view of NGC 3370, richer in light and detail than ever before, deepens our understanding of both the galaxy and the cosmos itself. This new Hubble Picture of the Week highlights a ...

How could the principle of "radical mundanity" proposed by the Fermi paradox help explain why humans haven't found evidence ...