When discussing the scale of the universe, we’re immediately faced with an intriguing question: are we tiny beings, or is the ...

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

He led a team of scientists who helped confirm that a Big Bang was the source of the universe. The discovery earned him a ...

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

“The cosmos is also within us, we're made of star-stuff. We are a way for the cosmos to know itself.” - Carl Sagan Compared to the Sun, how big is the Earth? What is a scale model and how does it help ...

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

Ordinary matter – basically, anything other than dark matter – makes up about 15% of all matter. But half of it has long been missing. Powerful bursts of radio waves emanating from 69 locations in the ...

A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.

The early universe experienced a phase of rapid expansion, known as inflation. For decades, cosmologists assumed that this expansion was powered by a new entity in the universe, known as the inflaton.

NEW YORK (AP) - Scientists are homing in on the nature of a mysterious force called dark energy, and nothing short of the fate of the universe hangs in the balance. The force is enormous — it makes up ...

Pulsars could be helping scientists distinguish between gravitational waves caused by supermassive black hole collisions and ...