A common height that seems normal in our human-scale world. Yet, when we compare it to the smallest and largest conceivable ...

Distance scales from the Planck length to a 93-billion-light-year observable universe expose extreme limits of physics and hint at unknown phenomena where current laws break down.

In CUriosity, experts across the CU Boulder campus answer pressing questions about humans, our planet and the universe beyond. Previously, astrophysicist Jeremy Darling tackled: “What is the biggest ...

Scientists are relatively certain that the observable universe is relatively flat, but in terms of the cosmos’s global topography, uncertainty reigns. A new study from an international scientific ...

Imagine being able to gaze at the very edge of the observable universe and witness a dazzling array of galaxies. NASA has now made this extraordinary experience possible by releasing an expansive map ...