The Big Bang theory has dominated our understanding of the universe’s origin for almost 100 years. It describes a moment when ...

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 ...

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

Dark energy and black holes are two of the most mysterious topics when it comes to space, but they might actually be linked. And causing the universe to expand.

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

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

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

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

APM 08279-5255 is a massive black hole (quasar) that contains about 140 trillion times the amount in all of Earth’s oceans ...

For two decades, scientists believed the cosmological constant, known as λ (lambda), was positive. That meant the Universe would keep expanding indefinitely.