The new data seem to indicate that the cosmological constant is negative, and that the universe will end in a Big Crunch,” ...

On human timescales, the universe may as well be eternal. It’ll be here long after our species and our planet are gone, but ...

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

The Universe might not exist forever. New observations by physicists indicate that it will one day reach its maximum size ...

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.

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

In 1867, Lord Kelvin imagined atoms as knots in the aether. The idea was soon disproven. Atoms turned out to be something ...

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

A new study predicts the Universe will stop expanding in 11 billion years and collapse in a "Big Crunch" around 20 billion ...