From cosmic road trip analogies to mind-bending measurement of the universe, here's a closer examination of just how gigantic ...

Even within our own solar system, distances are enormous. NASA astrophysicist Dr. Amber Straughn explains that driving a car ...

Sometimes even being in a big city can be enough to make you feel small. But looking up into the empty vastness of space, the sheer size of the universe is almost impossible to comprehend.

Team led by UChicago scientist Wendy Freedman using James Webb Space Telescope finds no evidence of tension in Hubble ...

The Universe is big, as Douglas Adams would say ... In other words, on a cosmic scale, the Universe is quite small. There are several reasons why cosmologists think the Universe is large.

that which would become our Universe was crammed into a volume just a tiny fraction the size of a proton. During the first picosecond of time (10⁻¹² seconds) after the Big Bang, the laws of ...

Essentially, the universe is so big because it can expand faster than light ... and that’s how we’re able to estimate the size of the universe. The fact that they appeared to move faster than light ...

A group of international scientists discovered three ultra-massive “Red Monster” galaxies capable ... doesn’t challenge the accepted model of the universe but does raise questions about ...

"During this phase, the scale factor of the universe, which tells us about its size, follows a cosine-like behavior," he explains. "This behavior ensures that the universe emerges with a finite ...

In this bouncing cosmology, the universe contracted to a size about 50 orders of magnitude smaller than it is today. After the rebound, photons and other particles were born, marking the Big Bang.