Depending on how you look at it, the universe might not have an "end," after all. Whether the universe will "end" at all is ...

It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

Here’s what you’ll learn when you read this story: A new paper adjusts an equation that defines our universe in response to recent new data. The cosmological constant, which describes how our universe ...

No one knows what kicked off the Big Bang that eventually allowed the stars to begin forming. Adolf Schaller for STScI, CC BY How can a Big Bang have been the start of the universe, since intense ...

The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, good ol' Earth helps us understand what the universe might be doing beyond ...

Knotted structures once imagined by Lord Kelvin may actually have shaped the universe’s earliest moments, according to new ...

If not in visible stars and galaxies, the most likely hiding place for the matter is in the dark space between galaxies.

If you’re having trouble sleeping at night, have you tried to induce total existential dread by contemplating the end of the entire Universe? If not, here’s a rundown of five ideas exploring how “all ...

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.

Is the universe infinite, Aristotle asked in 350 BCE, “or is this an impossibility? The decision … is … all-important to our search for the truth.” The Greek ...

Stephen DiKerby receives funding from the National Science Foundation. Whether the universe will “end” at all is not certain, but all evidence suggests it will continue being humanity’s cosmic home ...